Devices and methods for delivering medicaments from a multi-chamber container

ABSTRACT

An apparatus includes a housing, a medicament container, and a movable assembly. The movable assembly includes a first movable member and a second movable member. The second movable member is configured to move relative to the first movable member to move the movable assembly from a first configuration to a second configuration. A distal end portion of the second movable member is configured to move a plunger disposed within the medicament container in a distal direction when the movable assembly is moved to the second configuration. The movable assembly is configured to move between a first position and a second position to move the medicament container within the housing between a first container position and a second container position.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Application Ser.No. 61/436,301, entitled “Devices and Methods for Delivering LyophilizedMedicaments,” filed Jan. 26, 2011, which is incorporated herein byreference in its entirety.

BACKGROUND

The embodiments described herein relate generally to an injector, andmore particularly to a medicament delivery device for mixing amedicament and delivering the medicament into a body of a patient.

Exposure to certain substances, such as, for example, peanuts,shellfish, bee venom, certain drugs, toxins, and the like, can causeallergic reactions in some individuals. Such allergic reactions can, attimes, lead to anaphylactic shock, which can cause a sharp drop in bloodpressure, hives, and/or severe airway constriction. Accordingly,responding rapidly to mitigate the effects from such exposures canprevent injury and/or death. For example, in certain situations, aninjection of epinephrine (i.e., adrenaline) can provide substantialand/or complete relief from the allergic reaction. In other situations,for example, an injection of an antidote to a toxin can greatly reduceand/or eliminate the harm potentially caused by the exposure. Similarly,an injection of glucagon can reduce and/or eliminate the harmpotentially caused by reduced blood glucose levels in individuals whosuffer from diabetes.

Because emergency medical facilities are not always available when anindividual is suffering from a medical condition, some individuals carryan auto-injector to rapidly self-administer a medicament in response tosuch medical conditions. Some known auto-injectors include a vialcontaining a liquid medicament and a spring loaded needle toautomatically penetrate the user's skin and inject the medicament. Thestorage of certain medicaments in a liquid form, however, can result ina shorter shelf life and/or an unstable medicament. Accordingly, someknown auto-injectors include a vial containing a first medicament thatis separated from a second medicament. Such auto-injectors are oftenreferred to as “wet/dry” auto-injectors, because one medicament is oftena liquid (e.g., water or another diluent) and the other medicament canbe substantially solid or dry (e.g., glucagon powder). In use, the firstmedicament and the second medicament must be mixed prior to injection.

Some known wet/dry injectors, however, require that the user manuallyactuate a mixing mechanism prior to injection (e.g., by twisting aportion of the device to complete the mixing step). Such configurationscan, however, result in incomplete mixing and/or an injection occurringwithout mixing. In addition, the operation of some known wet/drydelivery systems includes manually inserting the needle into the skinprior to activation and subsequent medicament delivery. The operation ofsuch configurations may also include separately attaching a needle toprepare the device for injection, resulting in a delay in delivery ofthe medicament. Moreover, such configurations can be complicated, makingthem difficult for a user to operate during an emergency situation or byan individual without medical training.

Some known wet/dry injectors employ a single mechanism to automaticallymix and inject the medicaments contained therein. Because the mixingoperation is not independent from the injection operation in suchconfigurations, however, the medicament can be injected prior to thecompletion of the mixing operation and/or prior to the injector beingproperly positioned for the injection operation.

Thus, a need exists for an improved auto-injector that can separatelystore two or more medicaments and that can mix and inject themedicaments in distinct operations. A need also exists for improvedmethods of filling medicament containers used in such devices.

SUMMARY

Medicament delivery devices for mixing a medicament and delivering themedicament are described herein. In some embodiments, an apparatusincludes a housing, a medicament container, and a movable assembly. Themovable assembly includes a first movable member and a second movablemember. The second movable member is configured to move relative to thefirst movable member to move the movable assembly from a firstconfiguration to a second configuration. A distal end portion of thesecond movable member is configured to move a plunger disposed withinthe medicament container in a distal direction when the movable assemblyis moved to the second configuration. The movable assembly is configuredto move between a first position and a second position to move themedicament container within the housing between a first containerposition and a second container position.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1-4 are schematic illustrations of a medicament delivery deviceaccording to an embodiment, in a first, second, third, and fourthconfiguration, respectively.

FIGS. 5-7 are schematic illustrations of a medicament delivery deviceaccording to an embodiment, in a first, second, and third configuration,respectively.

FIGS. 8-10 are schematic illustrations of a medicament delivery deviceaccording to an embodiment, in a first, second, and third configuration,respectively.

FIGS. 11-13 are schematic illustrations of a medicament delivery deviceaccording to an embodiment, in a first, second, and third configuration,respectively.

FIGS. 14-17 are schematic illustrations of a medicament delivery deviceaccording to an embodiment, in a first, second, third, and fourthconfiguration, respectively.

FIGS. 18 and 19 are perspective views of a medical injector according toan embodiment, in a first configuration.

FIG. 20 is a rear view of the medical injector illustrated in FIG. 18with a cover removed.

FIG. 21 is a front view of the medical injector illustrated in FIG. 18with the cover removed.

FIG. 22 is a rear view of a portion of the medical injector illustratedin FIG. 18.

FIG. 23 is a bottom perspective view of a housing of the medicalinjector illustrated in FIG. 18.

FIG. 24 is a front perspective view of a first portion of the housing ofthe medical injector illustrated in FIG. 18.

FIG. 25 is a rear perspective view of the first portion of the housingof the medical injector illustrated in FIG. 24.

FIG. 26 is a front perspective view of a second portion of the housingof the medical injector illustrated in FIG. 18.

FIG. 27 is a rear perspective view of the second portion of the housingof the medical injector illustrated in FIG. 26.

FIG. 28 is a front view of a medicament delivery mechanism of themedical injector illustrated in FIG. 18.

FIG. 29 is a rear view of a medicament delivery mechanism of the medicalinjector illustrated in FIG. 18.

FIG. 30 is an enlarged front view of a portion of the medicamentdelivery mechanism of the medical injector illustrated in FIG. 29.

FIG. 31 is an enlarged rear view of a portion of the medicament deliverymechanism of the medical injector illustrated in FIG. 29.

FIG. 32 is a top view of a portion of the medical injector illustratedin FIG. 18.

FIG. 33 is an exploded view of a medicament container of the medicalinjector illustrated in FIG. 18.

FIG. 34 is a front view of the medicament container shown in FIG. 33.

FIGS. 35-38 illustrate an elastomeric member included in the medicamentcontainer of FIG. 33.

FIGS. 39-42 illustrate an elastomeric member included in the medicamentcontainer of FIG. 33.

FIGS. 43 and 44 are perspective views of a carrier included in themedical injector illustrated in FIG. 18.

FIG. 45 is a perspective view of a movable assembly of the medicalinjector illustrated in FIG. 18.

FIGS. 46-48 illustrate a first movable member included in the movableassembly illustrated in FIG. 45.

FIG. 49 illustrates a second movable member included in the movableassembly illustrated in FIG. 45.

FIG. 50 is a perspective view of a transfer member included in themedical injector illustrated in FIG. 18.

FIG. 51 is a rear view of an electronic circuit system of the medicalinjector illustrated in FIG. 18.

FIG. 52 is a front view of a portion of the electronic circuit system ofthe medical injector illustrated in FIG. 51.

FIG. 53 is a perspective view of a portion of an electronic circuitsystem of the medical injector illustrated in FIG. 18, in a firstconfiguration.

FIGS. 54-56 are front views of a portion of the electronic circuitsystem of the medical injector labeled as Region Z in FIG. 53 in a firstconfiguration, a second configuration and a third configuration,respectively.

FIGS. 57 and 58 are perspective views of a cover of the medical injectorillustrated in FIG. 18.

FIG. 59 is a perspective view of a safety lock of the medical injectorillustrated in FIG. 18.

FIG. 60 is a front view of the safety lock of the medical injectorillustrated in FIG. 59.

FIG. 61 is a bottom view of the safety lock of the medical injectorillustrated in FIG. 59.

FIG. 62 is a cross-sectional view of the safety lock of the medicalinjector illustrated in FIG. 59.

FIG. 63 is a perspective view of a needle sheath of the safety lock ofthe medical injector illustrated in FIG. 59.

FIG. 64 is a perspective view of a mixing actuator included in thesystem actuator assembly of the medical injector illustrated in FIG. 18.

FIG. 65 is a perspective view of a base included in a system actuatorassembly of the medical injector illustrated in FIG. 18.

FIG. 66 is a front view of the base included in the medical injectorillustrated in FIG. 65.

FIG. 67 is a back view of the medical injector illustrated in FIG. 18 ina second configuration.

FIG. 68 is a front cross-sectional view of the medical injectorillustrated in FIG. 18 in the second configuration.

FIG. 69 is a front view of a portion of the medical injector of FIG. 18just prior to transitioning to a third configuration (i.e., the mixingconfiguration).

FIG. 70 is a top perspective view of the medical injector illustrated inFIG. 18 in the third configuration.

FIG. 71 is a front cross-sectional view of the medical injectorillustrated in FIG. 18 in the third configuration.

FIG. 72 is an enlarged view of a portion of the front cross-sectionillustrated in FIG. 71.

FIG. 73 is a front cross-sectional view of the medical injectorillustrated in FIG. 18 in a fourth configuration (i.e., the needleinsertion configuration).

FIG. 74 is an enlarged view of a portion of the cross-sectionillustrated in FIG. 73.

FIG. 75 is a front cross-sectional view of the medical injectorillustrated in FIG. 18 in a fifth configuration (i.e., the injectionconfiguration).

FIG. 76 is a front cross-sectional view of the medical injectorillustrated in FIG. 18 in a sixth configuration (i.e., the retractionconfiguration).

FIG. 77 is a front perspective view of a medical injector according toan embodiment, in a first configuration.

FIG. 78 is a side view of the medical injector illustrated in FIG. 77.

FIG. 79 is a cross-sectional view taken along line X1-X1 of the medicalinjector illustrated in FIG. 78.

FIG. 80 is a front perspective view of the medical injector illustratedin FIG. 77 in a second configuration.

FIG. 81 is a rear view of the medical injector illustrated in FIG. 77 inthe second configuration.

FIG. 82 is a front view of a portion of the medical injector illustratedin FIG. 77 in the second configuration.

FIG. 83 is a front view of a medicament container assembly of themedical injector illustrated in FIG. 77.

FIG. 84 is a side view of a portion of the medicament container assemblyillustrated in FIG. 83.

FIG. 85 is a perspective view of a portion of the medicament containerassembly illustrated in FIG. 83.

FIG. 86 is a front perspective view of a portion of the medical injectorillustrated in FIG. 77.

FIG. 87 is a perspective exploded view of a portion of the movableassembly and the system actuator assembly illustrated in FIG. 86.

FIG. 88 is a cross-sectional view of a portion of the movable assemblyillustrated in FIG. 86.

FIG. 89 is a cross-sectional view of a portion of the movable assemblyillustrated in FIG. 86.

FIG. 90 is a front view of medicament delivery mechanism included in themedical injector illustrated in FIG. 77.

FIG. 91 is front perspective view of a portion of the medical deliverymechanism illustrated in FIG. 90.

FIG. 92 is rear perspective view of the portion of the medical deliverymechanism illustrated in FIG. 90.

FIG. 93 is a side view of the portion of the medicament deliverymechanism illustrated in FIG. 90.

FIG. 94 is a perspective view of the transfer member illustrated in FIG.90.

FIG. 95 is a perspective view of a portion of the medical injector ofFIG. 77 illustrating a retraction member.

FIG. 96 is a perspective view of a portion of an electronic assembly ofthe medical injector illustrated in FIG. 77.

FIG. 97 is a rear perspective view of a portion of the electronicassembly of the injector shown in FIG. 77.

FIG. 98 is a rear perspective view of a portion of the electronicassembly and the base included in the medical injector illustrated inFIG. 77.

FIG. 99 is a rear exploded view of a portion of the electronic assembly,the base, and the safety lock included in the medical injectorillustrated in FIG. 77.

FIGS. 100-105 are cross-sectional views illustrating the operation of amedical injector according to an embodiment.

FIGS. 106-111 are cross-sectional views illustrating the operation of amedical injector according to an embodiment.

FIGS. 112-117 are cross-sectional views illustrating the operation of amedical injector according to an embodiment.

FIG. 118 is a front view of a portion of a medical injector in a firstconfiguration, according to an embodiment.

FIG. 119 is a front cross-sectional view of the portion of the medicalinjector illustrated in FIG. 118 in the first configuration.

FIG. 120 is a front cross-sectional view of a portion of the medicalinjector illustrated in FIG. 118 in a second configuration.

FIG. 121 is an exploded perspective view of a portion of the medicalinjector illustrated in FIG. 118.

FIG. 122 is a top view of the medical injector illustrated in FIG. 118.

FIG. 123 is a bottom view of the medical injector illustrated in FIG.118.

FIG. 124 is a cross-sectional view of the medical injector illustratedin FIG. 118.

FIG. 125 is a cross-sectional view of the medical injector illustratedin FIG. 124 taken along the line W1-W1 in FIG. 124.

FIGS. 126-130 are cross-sectional views illustrating the operation ofthe medical injector illustrated in FIG. 118.

FIG. 131 is a top view of the medical injector illustrated in FIG. 118.

FIG. 132 is a cross-sectional view of the medical injector illustratedin FIG. 131 taken along the line W2-W2.

FIG. 133 is a perspective view of the medical injector illustrated inFIG. 118 in the first configuration.

FIG. 134 is a flow chart illustrating a method of filling a medicamentcontainer according to an embodiment.

FIGS. 135-142 are schematic illustrations of an embodiment of a fillingassembly operating according to the method illustrated in FIG. 134.

FIG. 143 is a flow chart illustrating a method of filling a medicamentcontainer according to an embodiment.

FIGS. 144-150 are schematic illustrations of an embodiment of a fillingassembly operating according to the method illustrated in FIG. 143.

FIG. 151 is a system block diagram of a filling system according to anembodiment.

DETAILED DESCRIPTION

Medicament delivery devices for mixing and/or delivering a medicamentare described herein. In some embodiments, an apparatus includes ahousing, a medicament container, and a movable assembly. The movableassembly includes a first movable member and a second movable member.The second movable member is configured to move relative to the firstmovable member to change the movable assembly from a first configurationto a second configuration. A distal end portion of the second movablemember is configured to move a plunger disposed within the medicamentcontainer in a distal direction when the movable assembly is changed tothe second configuration. The movable assembly is configured to movebetween a first position and a second position to move the medicamentcontainer within the housing between a first container position and asecond container position.

In some embodiments, a medicament delivery device includes a housing, amedicament container, and a movable assembly. The movable assembly isconfigured to increase in length when moved from a first configurationto a second configuration to move a plunger disposed within themedicament container a first distance. The movable assembly isconfigured to move between a first position and a second position withinthe housing to move the plunger a second distance.

In some embodiments, a medicament delivery device includes a housing, amedicament container, a movable member, and a release member. Themovable member is configured to move a plunger disposed within themedicament container. The release member includes a first end portionand a second end portion. The second end portion is configured to movebetween a first position and a second position. In the first position,the second end portion of the release member is configured to limit themovement of the movable member. The second end portion is configuredsuch that when the first end portion is moved in a first direction, thesecond end portion is moved in a second direction, substantiallydifferent from the first, from the first position to the secondposition.

In some embodiments, a medicament delivery device includes a housing, amedicament container, a movable member, and a release member. Themovable member is configured to move the medicament container within thehousing and/or a plunger disposed within the medicament container. Therelease member includes a first end portion, a second end portion, and apivot portion. The second end portion is configured to move between afirst position and a second position. In the first position the secondend portion of the release member is configured to limit the movement ofthe movable member. The pivot portion is configured to be coupled to thehousing. The first end portion of the release member is offset a firstdistance from the pivot portion and the second end portion of therelease member is offset from the pivot portion by a second distance,different than the first. In some embodiments, for example, the firstend portion and the second end portion are configured, relative to thepivot portion, to produce a mechanical advantage that is related to thedifference between the first distance and the second distance.

As used in this specification and the appended claims, the term“medicament” includes any constituent of a therapeutic substance. Amedicament can include such constituents regardless of their state ofmatter (e.g., solid, liquid or gas). Moreover, a medicament can includethe multiple constituents that can be included in a therapeuticsubstance in a mixed state, in an unmixed state and/or in a partiallymixed state. A medicament can include both the active constituents andinert constituents of a therapeutic substance. Accordingly, as usedherein, a medicament can include non-active constituents such as, water,colorant or the like.

As used herein, the words “proximal” and “distal” refer to directioncloser to and away from, respectively, an operator of the medicaldevice. Thus, for example, the end of the medicament delivery devicecontacting the patient's body would be the distal end of the medicamentdelivery device, while the end opposite the distal end would be theproximal end of the medicament delivery device.

FIGS. 1-4 are schematic illustrations of a medicament delivery device1000 according to an embodiment in a first, second, third and fourthconfiguration, respectively. The medicament delivery device 1000includes a housing 1100, a medicament container 1210, and a movableassembly 1300. The housing 1100 can be any suitable size, shape, orconfiguration and can be made of any suitable material. For example, insome embodiments, the housing 1100 is an assembly of multiple partsformed from a plastic material and defines a substantially rectangularshape when assembled.

The medicament container 1210 is disposed within the housing 1100, andcontains (i.e., is filled or partially filled with) a medicament. Themedicament container 1210 includes a proximal end portion and a distalend portion that can be coupled to a delivery member, such as a tube, aneedle or the like (not shown in FIGS. 1-4). The medicament container1210 further includes an elastomeric member 1221 (also referred toherein as a “plunger”). The elastomeric member 1221 is formulated to becompatible with the medicament housed within the medicament container1210. Similarly stated, the elastomeric member 1221 is formulated tominimize any reduction in the efficacy of the medicament that may resultfrom contact (either direct or indirect) between the elastomeric member1221 and the medicament. For example, in some embodiments, theelastomeric member 1221 can be formulated to minimize any leaching orout-gassing of compositions that may have an undesired effect on themedicament. In some embodiments, the elastomeric member 1221 can bedisposed within the medicament container 1210 to seal the proximal endportion of the medicament container 1210. In some embodiments, theelastomeric member 1221 can be formulated to maintain its chemicalstability, flexibility and/or sealing properties when in contact (eitherdirect or indirect) with a medicament over a long period of time (e.g.,for up to six months, one year, two years, five years or longer). Themedicament container 1210 can be any container suitable for storing themedicament.

The movable assembly 1300 includes a first movable member 1301 and asecond movable member 1370 and is configured to move between a firstconfiguration and a second configuration. The first movable member 1301and the second movable member 1370 are movably coupled together suchthat the second movable member 1370 can move with and/or relative to thefirst movable member 1301. For example, in some embodiments, the secondmovable member 1370 can include a channel that receives a protrusionincluded in the first movable member 1301. In this manner, theprotrusion of the first movable member 1301 can move within the channelof the second movable member 1370 such that the second movable member1370 can move relative to the first movable member 1301 while remainingcoupled to the first movable member 1370.

As shown in FIG. 1, the second movable member 1370 includes a distalportion 1372 that engages the plunger 1221 disposed within themedicament container 1210. In some embodiments, the distal end portion1372 of the second movable member 1370 can be spaced apart from theplunger 1221 when the movable assembly 1300 is in a first configuration(e.g., FIG. 1). The second movable member 1370 can be any suitablemechanism for contacting and/or moving the plunger 1221. For example, insome embodiments, the second movable member 1370 can be a piston thatincludes a base disposed at the distal end portion 1372 that engages theplunger 1221. The second movable member 1370 can be moved, relative tothe first movable member 1301 to move the movable assembly 1300 from thefirst configuration to a second configuration (FIG. 2). When the secondmovable member 1370 moves relative to the first movable member 1301, thedistal end portion 1372 can move the plunger 1221 in the distaldirection within the medicament container 1210, as shown by the arrow AAin FIG. 2. The distal motion of the plunger 1221 can facilitate, forexample, a mixing of medicament constituents contained within themedicament container 1210. For example, in some embodiments, themedicament can include a first medicament portion (or constituent) and asecond medicament portion (or constituent) configured to mix whenpressurized. In some embodiments, the distal movement of the plunger1221 can facilitate the release of a pressurized gas. In someembodiments, a pressurized gas can be included within the medicamentcontainer to separate a first medicament portion (or constituent) from asecond medicament portion (or constituent) when the movable assembly1300 is in the first configuration. Therefore, when the pressurized gasis released, the first medicament portion mixes with the secondmedicament portion. In yet other embodiments, the distal movement of theplunger 1221 can facilitate the release of gas that is undesirablycontained within the medicament prior to delivery of the medicament.

In some embodiments, the second movable member 1370 can be configured tomove in the direction AA (e.g., the distal direction) in response to aforce exerted by a user (e.g., via direct contact, a pull tab, a slider,and/or the like). In some embodiments, the second movable member 1370can be configured to move in the direction AA (e.g., the distaldirection) in response to a force exerted by an energy storage member(not shown in FIGS. 1-4). In such embodiments, an energy storage membercan be any suitable mechanism or device for storing energy. For example,the energy storage member can be a mechanical energy storage member,such as a spring, a device containing compressed gas, a devicecontaining a vapor pressure-based propellant or the like. In otherembodiments, the energy storage member can be an electrical energystorage member, such as a battery, a capacitor, a magnetic energystorage member or the like. In yet other embodiments, the energy storagemember can be a chemical energy storage member, such as a containercontaining two substances that, when mixed, react to produce energy. Byemploying the energy storage member to produce the force rather thanrelying on a user to manually produce the delivery force, the plunger1221 can be moved at the desired pressure and/or with the desired force.Moreover, this arrangement reduces the likelihood of partial or impropermovement of the plunger 1221 (e.g., that may result if the user isinterrupted or otherwise rendered unable to manually produce the forceto complete the movement of the second movable member 1370).

The movable assembly 1300 is configured to move from a first position(e.g., FIG. 1) to a second position (e.g., FIG. 3) within the housing1100, as shown by the arrow BB in FIG. 3. In some embodiments, themovable assembly 1300 can move in the direction BB (e.g., the distaldirection) in response to a portion of the force exerted by the energystorage member (described above). In other embodiments, the movableassembly 1300 can move in the distal direction in response to a secondforce exerted by the energy storage member. In other embodiments, themovable assembly 1300 can be in contact with or operably coupled to asecond energy storage member (different from an energy storage memberused to move the second movable member 1370) configured to exert thesecond force on the movable assembly 1300. In still other embodiments,the movable assembly 1300 can be manually moved to the second position(e.g., as described above).

The distal movement of the movable assembly 1300 is configured to movethe medicament container 1210 within the housing 1100 from a firstcontainer position (e.g., FIG. 2) to a second container position. Insome embodiments, the distal movement (e.g., in the direction of thearrow BB shown in FIG. 3) can facilitate the insertion of a needle,disposed at the distal end portion of the medicament container 1210,into a target location (e.g., the body of a patient). Furthermore, withthe medicament container 1210 in the second container position withinthe housing 1100, the second movable member 1370 can continue to move inthe distal direction, as shown by the arrow CC in FIG. 4. In thismanner, the second movable member 1370 can move relative to the firstmovable member 1301 to move the plunger 1221 within the medicamentcontainer 1210 such that the medicament disposed therein is delivered toa volume substantially outside the medicament container 1210 (e.g., intothe body of the patient via the needle).

Although the length of the movable assembly 1300, as measured along alongitudinal axis thereof, is substantially constant when the movableassembly 1300 is changed from the first configuration (FIG. 1) to thesecond configuration (FIG. 2) and/or to the third configuration (FIG.4), in other embodiments, the length of the movable assembly 1300 canchange when the movable assembly 1300 changes between variousconfigurations. Similarly stated, although the overall length of themovable assembly 1300 is the same as the length of the second movablemember 1370, and remains the same in the configurations shown in FIGS.1-4, in other embodiments, the overall length of the movable assembly1300 can change when the movable assembly 1300 when the movable assembly1300 changes between various configurations. For example, FIGS. 5-7 areschematic illustrations of a medicament delivery device 2000 accordingto an embodiment in a first, second, and third configuration,respectively. The medicament delivery device 2000 includes a housing2100, a medicament container 2210, and a movable assembly 2300. Thehousing 2100 can be any suitable size, shape, or configuration and canbe made of any suitable material. For example, in some embodiments, thehousing 2100 is an assembly of multiple parts formed from a plasticmaterial and defines a substantially rectangular shape when assembled.

The medicament container 2210 is disposed within the housing 2100, andcontains (i.e., is filled or partially filled with) a medicament. Themedicament container 2210 includes a proximal end portion and a distalend portion that is coupled to a delivery member, such as a tube, needleor the like (not shown in FIGS. 5-7). The medicament container 2210further includes an elastomeric member 2221 (also referred to herein asa “plunger”). The elastomeric member 2221 is formulated to be compatiblewith the medicament housed within the medicament container 2210.Similarly stated, the elastomeric member 2221 is formulated to minimizeany reduction in the efficacy of the medicament that may result fromcontact (either direct or indirect) between the elastomeric member 2221and the medicament. For example, in some embodiments, the elastomericmember 2221 can be formulated to minimize any leaching or out-gassing ofcompositions that may have an undesired effect on the medicament. Insome embodiments, the elastomeric member 2221 can be disposed within themedicament container 2210 to seal the proximal end portion of themedicament container 2210. In some embodiments, the elastomeric member2221 can be formulated to maintain its chemical stability, flexibilityand/or sealing properties when in contact (either direct or indirect)with a medicament over a long period of time (e.g., for up to sixmonths, one year, two years, five years or longer). The medicamentcontainer 2210 can be any container suitable for storing the medicament.

The movable assembly 2300 can include any number of parts or components,and is configured to move between a first configuration and a secondconfiguration. For example, in some embodiments, the movable assembly2300 can include at least a first movable member and a second movablemember configured to “telescope” to change the length of the movableassembly, as described herein. In other embodiments, the movableassembly 2300 can include a single component that is configured tochange lengths. Such single component embodiments can include, forexample, an inflatable or expandable member having flexible walls and/ora bellows structure to facilitate a change in length as describedherein.

In particular, as shown in FIG. 5, the movable assembly 2300 defines afirst length L₁ when in the first configuration. Similarly, when themovable assembly 2300 is in the first configuration and first position,the plunger 2221 is disposed within the medicament container 2210 at afirst depth D₁. As shown in FIG. 6, the distal end portion of themovable assembly 2300 is moved in the direction of the arrow DD when themovable assembly 2300 changes to the second configuration. In thismanner, the length L₁ of the movable assembly 2300 is increased to asecond length L₂. Furthermore, when the movable assembly 2300 changes tothe second configuration, the plunger 2221 is moved a first distance toa second position within the medicament container 2210 (i.e., such thatthe plunger 2221 is disposed at a second depth D₂, as shown in FIG. 6).In some embodiments, the movable assembly 2300 can be configured to movein the direction DD (e.g., the distal direction) and/or change from thefirst configuration to the second configuration in response to a forceexerted by a user (e.g., via direct contact, a pull tab, a slider,and/or the like). In other embodiments, the movable assembly 2300 can beconfigured to move in the direction DD and/or change from the firstconfiguration to the second configuration in response to a force exertedby an energy storage member (not shown in FIGS. 5-7). In suchembodiments, an energy storage member can be any suitable mechanism forstoring energy of the types shown and described herein (e.g., amechanical energy storage member, a device containing compressed gas, adevice containing a vapor pressure-based propellant, an electricalenergy storage member, a chemical energy storage member or the like).

The distal motion of the plunger 2221 when the movable assembly is movedto the second configuration can facilitate, for example, a mixing ofmedicament constituents contained within the medicament container 2210.For example, in some embodiments, the medicament can include a firstmedicament portion (or constituent) and a second medicament portion (orconstituent) configured to mix under a given pressure. In someembodiments, the distal movement of the plunger 2221 can facilitate suchmixing. In some embodiments, the distal movement of the plunger 2221 canfacilitate the removal (or purging) of air within the medicament and/ormedicament container 2210. In such embodiments, the medicament container2210 can be slightly overfilled such that as the plunger is moved thefirst distance, the overfilled portion and any undesirable air or gaswithin the medicament container 2210 and/or needle is expelled beforedelivery. This arrangement can be used to control the accuracy of adelivery dosage and/or reduce the introduction of an air into the targetlocation. For example, by moving the plunger 2221 the first distance toa known location within the medicament container 2210, the remainingamount of medicament to be delivered (via the subsequent movement of theplunger 2221, as described below) can be accurately controlled.

When the movable assembly 2300 is in the second configuration (e.g.,FIG. 6), the movable assembly 2300 can be moved from a first position toa second position within the housing 2100, as shown by the arrow EE inFIG. 7. The distal motion of the movable assembly 2300 (e.g., in thedirection of the arrow EE) moves the plunger 2221 within the medicamentcontainer 2210 a second distance to place the plunger 2221 at a thirddepth D₃. In this manner, the plunger 2221 is moved within themedicament container 2210 such that the medicament disposed therein isdelivered to a volume substantially outside the medicament container2210 (e.g., into the body of the patient via the needle). Although themedicament container 2210 is shown in FIGS. 5-7 as remainingsubstantially stationary when the movable assembly 2300 moves, in otherembodiments, movement of the movable assembly can cause the medicamentcontainer 2210 to move within the housing 2100.

FIGS. 8-10 are schematic illustrations of a medicament delivery device3000 according to an embodiment in a first, second, and thirdconfiguration, respectively. The medicament delivery device 3000includes a housing 3100, a medicament container 3210, a movable member3300, and a release member 3550. The housing 3100 can be any suitablesize, shape, or configuration and can be made of any suitable material.For example, in some embodiments, the housing 3100 is an assembly ofmultiple parts formed from a plastic material and defines asubstantially rectangular shape when assembled.

The medicament container 3210 is disposed within the housing 3100, andcontains (i.e., is filled or partially filled with) a medicament. Themedicament container 3210 includes a proximal end portion and a distalend portion that can be coupled to a delivery member, such as a tube,needle or the like (not shown in FIGS. 8-10). The medicament container3210 further includes an elastomeric member 3221 (also referred toherein as a “plunger”). The elastomeric member 3221 is formulated to becompatible with the medicament housed within the medicament container3210, as described above.

The movable member 3300 can be any suitable shape, size, orconfiguration, and is configured to move the plunger 3221 between afirst position and a second position, as described herein. For example,in some embodiments, the movable member 3300 can be a piston configuredto engage the plunger 3221 and to move the plunger within the medicamentcontainer 3210. In some embodiments, the movable member 3300 can be amovable assembly, including any number of parts. For example, in someembodiments, the movable assembly can include a first movable member anda second movable member, such as, for example, the movable assembly 3300described with respect to FIGS. 5-7.

The release member 3550 includes at least a first end portion 3551 and aretention portion 3558. The release member 3550 can be any suitablesize, shape, or configuration and is configured to move between a firstposition and a second position. As shown in FIG. 8, the retentionportion 3558 engages the movable member 3300 when the release member3550 is the first position. In this manner, the retention portion 3558is configured to limit the movement of the movable member 3300 when therelease member 3550 is in the first position. The release member 3550can be any suitable mechanism for limiting the movement of the movablemember, such as, a lever, a latch, a cable, a rod, and/or the like. Forexample, as shown in FIGS. 9 and 10, the retention portion 3558disengages the movable member 3300 when the release member 3550 is movedto the second position. While shown in FIGS. 8-10 as being partiallydisposed within the housing 3100, in other embodiments, the releasemember 3550 can be completely disposed within the housing 3100.

As shown in FIG. 9, in use, the first end portion 3551 of the releasemember 3550 is urged to move in the direction of the arrow FF to thesecond position to release the movable member 3300. For example, in someembodiments, the first end portion 3551 can be engaged by a portion ofthe medicament delivery device 3000 such that a distal movement of theportion moves the first end portion 3551 of the release member 3550 inthe direction of the arrow FF. In some embodiments, the first endportion 3551 can be coupled to, for example, a safety lock, an armingdevice, a cover or the like (not shown). In such embodiments, a user canmanipulate the safety lock, arming device, or cover as an initial stepin operating the medicament delivery device 3000, thereby urging thefirst end portion 3551 of the release member 3550 to move in thedirection FF. In other embodiments, the first end portion 3551 caninclude, for example, a pull tab, a push button, a slider, and/or thelike that can be engaged by the user such that the first end portion3551 is moved in the direction FF (e.g., the distal direction) whenmanipulated.

As shown in FIG. 9, the movement of the first end portion 3551 of therelease member 3550 can facilitate a pivoting motion of the releasemember 3550, as shown by the arrow HH in FIG. 9. In this manner, therelease member 3550 pivots, rotates, or otherwise reconfigures relativeto the housing 3100 such that the retention portion 3558 of the releasemember 3550 is moved in a second direction as shown by the arrow GG. Inthis manner, the retention portion 3558 disengages the movable member3300. By changing the direction of motion of the retention portion 3558,this arrangement can result in more compact delivery devices, placementof the first end portion 3551 of the release member 3550 in anergonomically desirable position relative to the housing 3100 or thelike. In some embodiments, the second direction can be substantiallynormal to the first direction. In other embodiments, the seconddirection can be substantially opposite and parallel to the firstdirection.

In some embodiments, the release member 3550 can be configured such thatthe first end portion 3551 can be moved in the first direction FF with afirst force and the retention end portion 3558 can be moved in thesecond direction GG with a second force. For example, in someembodiments, the arrangement of the release member 3550 defines amechanical advantage such that by moving the first end portion 3551 withthe first force, the retention portion 3558 moves with the second force,substantially greater than the first force. In other embodiments, theretention portion 3558 moves in the second direction GG with the firstforce.

With the retention portion 3558 disengaged from the movable member 3300(e.g., the release member 3550 is in the second configuration), themovable assembly 3300 is urged to move in the distal direction, as shownin FIG. 10. In some embodiments, the movable member 3300 can beconfigured to move in the distal direction in response to a forceexerted by an energy storage member (not shown in FIGS. 8-10). In suchembodiments, an energy storage member can be any suitable mechanism forstoring energy of the types shown and described herein (e.g., amechanical energy storage member, a device containing compressed gas, adevice containing a vapor pressure-based propellant, an electricalenergy storage member, a chemical energy storage member or the like).

While the release member 3550 is shown in FIGS. 8-10 as being pivotallycoupled to the housing 3100, in other embodiments, a release member canmove between a first position and a second position in any suitablemanner (e.g., translation along any axis, rotation about any axis orcombination thereof). For example, FIGS. 11-13 show a medicamentdelivery device 4000 that includes a housing 4100, a medicamentcontainer 4210, a movable member 4300, and a release member 4550. Insome embodiments, the housing 4100 and the medicament container 4210 canbe substantially similar to the housing 3100 and the medicamentcontainer 3210 included in the medicament delivery device 3000.

The release member 4550 includes a first end portion 4551, a second endportion 4552, and retention portions 4558, and is configured to movebetween a first configuration (FIG. 11) and a second configuration (FIG.12). As shown in FIG. 11, the retention portions 4558 engage and/orcontact the movable member 4300 when the release member 4550 is thefirst configuration. In this manner, the retention portions 4558 limitthe movement of the movable member 4300 when the release member 4550 isin the first configuration. The retention portions 4558 can engageand/or contact the movable member 4300 in any suitable manner. Forexample, in some embodiments, the movable member 4300 can include aprotrusion (not shown in FIG. 11-13) extending from a proximal surfacethat can be selectively engaged by the retention portions 4558. In otherembodiments, the retention portions 4558 can be disposed with a channeldefined by the movable member 4300 (not shown).

As shown in FIG. 12, to actuate the medicament delivery device 4000, thefirst end portion 4551 of the release member 4550 is urged to move inthe direction of the arrow II from a first position to a secondposition. For example, in some embodiments, the first end portion 4551can be engaged by a portion of the medicament delivery device 4000 suchthat a movement of the portion moves the first end portion 4551 of therelease member 4550 in the direction of the arrow II. In otherembodiments, the first end portion 4551 can include, for example, a pulltab, a push button, a slider, and/or the like that can be engaged by theuser such that the first end portion 4551 is moved in the direction II(e.g., the distal direction).

The release member 4550 is configured such that the distal movement ofthe first end portion 4551 moves the retention portions 4558 in alateral direction relative to the movable member 4300. Said another way,the movement of the first end portion 4551 in a first direction resultsin movement of the second end portion 4552 in a second directiondifferent from the first direction. Expanding further, the second endportion 4552 of the release member 4550 can be bifurcated such that thedistal motion of the first end portion 4551 urges the release member4550 to separate and/or deform at the second end portion 4552, therebymoving the retention portions 4558 in a direction substantially normalto the direction of motion of the first end portion 4551. In someembodiments, the retention portions 4558 can move within a channeland/or guide portion of the housing 4100 and/or the movable member 4300.In this manner, the distal movement of the first end portion 4551 movesthe retention portions 4558 such that the retention portions 4558disengage the movable member 4300.

When the retention portions 4558 are disengaged from the movable member4300 (e.g., the release member 4550 is in the second configuration), themovable assembly 4300 is urged to move in the distal direction, as shownby the arrow JJ in FIG. 13. In some embodiments, the movable member 4300can be configured to move in the distal direction in response to a forceexerted by an energy storage member (not shown in FIGS. 11-13). In suchembodiments, an energy storage member can be any suitable mechanism. Forexample, the energy storage member can be any of the energy storagemembers described above with respect to FIGS. 11-13. Furthermore, thedistal movement of the movable member 4300 moves the plunger 4221 in thedirection JJ (e.g., the distal direction) within the medicamentcontainer 4210. In some embodiments, the distal motion of the plunger4221 can facilitate a mixing event, such as, for example, the mixingevent described above with respect to FIGS. 5-7. In this manner (e.g.,with or without a mixing event), the plunger 4221 is moved within themedicament container 4210 such that the medicament disposed therein isdelivered to a volume substantially outside the medicament container4210 (e.g., into the body of the patient via the needle).

While the medicament containers described above include a singleplunger, in some embodiments, any of the medicament containers describedherein can include any number of plungers and/or can define multiplevolumes therein that contain different medicament constituents. Forexample, as shown in FIGS. 14-17, a medicament delivery device 5000includes a housing 5100, a medicament container 5210, and a movableassembly 5300. The housing 5100 can be any suitable size, shape, orconfiguration and can be made of any suitable material. For example, insome embodiments, the housing 5100 is an assembly of multiple partsformed from a plastic material and defines a substantially rectangularshape when assembled.

The medicament container 5210 is disposed within the housing 5100, andincludes a first plunger 5221, a second plunger 5225, and a bypass 5220.The medicament container 5210 defines a first volume 5236, and a secondvolume 5237. Expanding further, the first volume 5236 is defined betweena distal end surface of the first plunger 5221, a portion of themedicament container 5120 and a proximal end surface of the secondplunger 5225, and can contain a first substance, such as any suitablediluent, as described in further detail herein. Similarly, the secondvolume 5236 is defined between a distal end surface of the secondplunger a distal end portion of the medicament container 5210, and cancontain a second substance, such as any suitable medicament (e.g., alyophilized medicament). In this manner, the diluent contained withinthe first volume 5236 can be stored separately from with the medicamentwithin the second volume 5237. Upon actuation the diluent can be mixedwith the medicament such that the combination of the diluents and themedicament reconstitute the medicament for delivery into, for example,the body of a patient.

The movable assembly 5300 includes a first movable member 5301 and asecond movable member 5370, and is configured to move between a firstconfiguration, a second configuration, and a third configuration. Thefirst movable member 5301 and the second movable member 5370 are movablycoupled such that the second movable member 5370 can move with and/orrelative to the first movable member 5301. As shown, in someembodiments, the second movable member 5370 can substantially surroundthe first movable member 5301. In some embodiments, the second movablemember 5370 can define a substantially annular and/or cylindrical shapesuch that at least a portion of the first movable member 5301 isdisposed therein.

As shown in FIG. 14, the second movable member 5370 engages the firstplunger 5221 disposed within the medicament container 5210 and when themovable assembly 5300 is in the first configuration (FIG. 14). In otherembodiments, the second movable member 5370 can be spaced apart from theplunger 5221 when the movable assembly 5300 is in the firstconfiguration. The second movable member 5370 can be moved, relative tothe first movable member 5301 to move the movable assembly 5300 from thefirst configuration to the second configuration. For example, in someembodiments, the second movable member 5370 can be moved by a forceexerted by an energy storage member (e.g., such as those describedherein). When the second movable member 5370 moves relative to the firstmovable member 5301, a distal end portion of the second movable member5370 moves the first plunger 5221 in the distal direction within themedicament container 5210, as shown by the arrow KK in FIG. 15. Thedistal motion of the plunger 5221 can facilitate, for example, a mixingof diluents and the medicament contained within the medicament container5210. For example, in some embodiments, the distal movement of the firstplunger 5221 can cause the second plunger 5225 to move past the bypass5220 and urge the diluent, contained within the first volume 5236 tomove within the bypass 5220 and enter the second volume 5237.

The bypass 5220 can be any suitable bypass (external or internal)configured to define a pathway between the first volume 5236 and thesecond volume 5237. In some embodiments, the bypass 5220 can include aone way valve such that when a pressure within the first volume 5236increases (e.g., as induced by the distal movement of the first plunger5221), the one way valve opens to allow a flow of the diluent throughthe bypass 5220 to the mixing volume 5237. In other embodiments, thebypass 5220 can include a frangible seal configured to break under theincrease pressure. In this manner, when first plunger 5221 is moved, thefirst volume 5236 is reduced and the distal end surface of the firstplunger 5221 can contact the proximal end surface of the second plunger5255. Accordingly, as the volume defined by the first volume 5236 isreduced, the volume of the second volume 5237 increases. In this manner,the distal end surface of the first plunger 5221 contacts the proximalend surface of the second plunger 5225 at a position within themedicament container 5210 such that the first plunger 5221 of the secondplunger 5225 substantially seals an opening of the bypass 5220, therebypreventing potential backflow.

The movable assembly 5300 is configured to move from a first position(e.g., FIG. 14) to a second position within the housing 5100, as shownby the arrow LL in FIG. 16. In some embodiments, the movable assembly5300 can move in the direction LL (e.g., the distal direction) inresponse to a portion of a force exerted, for example, by the energystorage member (described above). The distal movement of the movableassembly 5300 moves the medicament container 5210 within the housing5100 from a first container position (e.g., FIG. 15) to a secondcontainer position (e.g., FIG. 16). In some embodiments, the distalmovement (e.g., in the direction of the arrow LL shown in FIG. 16) canfacilitate the insertion of a needle (not shown in FIGS. 14-17),disposed at the distal end portion of the medicament container 5210,into a target location (e.g., the body of a patient).

When the medicament container 5210 is in the second container positionwithin the housing 5100, the first movable member 5301 moves distally toengage the second movable member 5370. In this manner, the first movablemember 5301 and the second movable member 5370 can move together in thedistal direction, as shown by the arrow MM in FIG. 17. Thus, the movableassembly 5300 moves in the distal direction and moves the first plunger5221 and the second plunger 5225 within the medicament container 5210such that the medicament disposed within the second volume 5237 isdelivered to a volume substantially outside the medicament container5210 (e.g., into the body of the patient via the needle).

In some embodiments, the medicament delivery device can be a medicalinjector configured to automatically mix and deliver a medicamentcontained within a medicament container. For example, FIGS. 18-76 showvarious views of a medical injector 6000, according to an embodiment invarious different configurations (or stages of operation). FIGS. 18-19are perspective views of the medical injector 6000 in a firstconfiguration (i.e., prior to use). The medical injector 6000 includes ahousing 6100 (see e.g., FIGS. 20-27), a system actuator assembly 6500(see e.g., FIGS. 28-32 and 64-66), a medicament container assembly 6200containing a medicament 6240 (see e.g., FIGS. 33-44), a movable assembly6300 (see e.g., FIGS. 45-49), a transfer member 6600 (see e.g., FIG.50), an electronic circuit system 6900 (see e.g., FIGS. 51-56), a cover6190 (see e.g., FIGS. 57 and 58), and a safety lock 6700 (see e.g.,FIGS. 59-63). A discussion of the components of the medical injector6000 will be followed by a discussion of the operation of the medicalinjector 6000.

As shown in FIGS. 20-27, the housing 6100 includes a first housingmember 6110 (FIGS. 24 and 25) and a second housing member 6140 (FIGS. 26and 27) that can couple to form the housing 6100. The housing 6100 has aproximal end portion 6101 and a distal end portion 6102. The housing6100 defines a first status indicator aperture 6130 (defined by thefirst housing member 6110) and a second status indicator aperture 6160(defined by the second housing member 6140). The status indicatorapertures 6130, 6160 can allow a patient to monitor the status and/orcontents of the medicament container 6210 contained within the housing6100. For example, by visually inspecting the status indicator aperture6130 and/or 6160, a patient can determine whether the medicamentcontainer 6210 contains a medicament 6240 and/or whether the medicament6240 has been dispensed.

As shown in FIGS. 24-25, the first housing member 6110 includes an outersurface 6113 and an inner surface 6116, and a proximal end portion 6111and a distal end portion 6112. The outer surface 6113 defines baseretention recesses 6134A and 6134B, an activation rod groove 6115, and abase rail groove 6114, at the distal end portion 6112 of the firsthousing member 6110. The distal base retention recesses 6134A areconfigured to receive base connection knobs 6518 of an actuator 6510(also referred to herein as “base 6510,” see e.g., FIG. 66) when thebase 6510 is in a first (i.e., pre-actuated) position relative to thehousing 6100. The proximal base retention recesses 6134B are configuredto receive the base connection knobs 6518 of the base 6510 when the base6510 is in a second (i.e., actuated) position relative to the housing6100. The base retention recesses 6134A, 6134B have a tapered proximalsidewall and a non-tapered distal sidewall. This arrangement allows thebase retention recesses 6134A, 6134B to receive the base connectionknobs 6518 such that the base 6510 can move proximally relative to thehousing 6100, but cannot move distally relative to the housing 6100.Said another way, the distal base retention recesses 6134A areconfigured to prevent the base 6510 from moving in the distal directionwhen the base 6510 is in the first position and the proximal baseretention recesses 6134B are configured to prevent the base 6510 frommoving in the distal direction when the base 6510 is in the secondposition. Similarly stated, the proximal base retention recesses 6134Band the base connection knobs 6518 cooperatively lock the base 6510 toprevent undesirable movement of the base 6510 after the medical injector6000 is actuated, and to further visually indicate to the user that themedical injector has been actuated.

The activation rod groove 6115 is configured to receive an activator6530 (also referred to herein as “release member 6530,” and/or “rod6530” see e.g., FIG. 66) of the base 6510. As described in more detailherein, the release member 6530 of the base 6510 is configured to engagea portion of the movable assembly 6300 (also referred to herein as“medicament delivery mechanism 6300”) when the base 6510 is moved withrespect to the housing 6100 to actuate the medical injector 6000. Thebase rail groove 6114 is configured to receive a guide member 6517 ofthe base 6510. The guide member 6517 of the base 6510 and the base railgroove 6114 of the housing 6100 engage each other in a way that allowsthe guide member 6517 of the base 6510 to slide in a proximal and/ordistal direction within the base rail groove 6114 while limiting lateralmovement of the guide member 6517 and/or base 6510 with respect to thehousing 6100.

The inner surface 6116 of the first housing member 6110 includes atransfer member guide 6117, a movable member guide 6118, a mixingactuator guide 6119, an upper spring plate 6122, an upper mixingactuator plate 6123, and a mixing actuator pivot protrusion 6124 (seee.g., FIG. 25). The transfer member guide 6117 is configured to engage aguide surface 6619 and a guide protrusion 6624 of the transfer member6600 (see FIG. 50). The guide surface 6619 and the guide protrusion 6624of the transfer member 6600 and the transfer member guide 6117 of thefirst housing member 6110 engage each other in a way that allows theguide surface 6619 and the guide protrusion 6624 of the transfer member6600 to slide in a proximal and/or distal direction along the transfermember guide 6117 while limiting lateral movement of the transfer member6600 within the housing 6100.

The transfer member guide 6117 defines an upper notch 6126 and a lowernotch 6121. The upper notch 6126 defined by the transfer member guide6117 can receive the guide protrusion 6624 of the transfer member 6600during assembly of the medical injector 6000. Similarly stated, theguide protrusion 6624 is inserted through the upper notch 6126 and isdisposed on an opposite side of the transfer member guide 6117 than theguide surface 6619 of the transfer member 6600. This arrangement allowsthe transfer member 6600 to move in a proximal and/or distal directionwith respect to the housing 6100 but prevents the transfer member 6600from moving in a lateral direction with respect to the housing 6100.Furthermore, the guide protrusion 6624 can be moved through the uppernotch 6126 to disengage the transfer member 6600 from the medicamentdelivery device 6300 without moving the medicament delivery device 6300.For example, in some embodiments, the medicament 6240 disposed withinthe medicament container 6210 can expire. In such embodiments, the guideprotrusion 6624 can be moved through the upper notch 6126 to disengagefrom the medicament delivery device 6300, thereby disarming the medicalinjector 6000 (e.g., rendering the medical injector 6000 incapable ofcompleting an injection event in the designed manner). The lower notch6121 receives the guide protrusion 6624 to facilitate a retractionevent, as described in further detail herein.

Similarly, the movable member guide 6118 is configured to engage a firstlatch protrusion 6315 included in a first movable member 6301 of themedicament delivery mechanism 6300 (see e.g., FIGS. 29, 30 and 47). Asdescribed in more detail below, the movable member guide 6118 defines alatch member notch 6120 that includes an engagement surface 6109 (seeFIG. 30) against which the first latch protrusion 6315 of the latchportion 6310 of the first movable member 6301 is disposed when themedical injector 6000 is in the first configuration.

The mixing actuator guide 6119 engages a mixing actuator member 6550included in the system actuation assembly 6500 (see e.g., FIG. 64).Furthermore, the inner surface 6116 of the first housing portion 6110includes lower retention protrusions 6138 and an upper retentionprotrusion 6139. The arrangement of the mixing actuator guide 6119 andthe upper and lower retention protrusions, 6139 and 6138 respectively,defines a channel or track within which the mixing actuator member 6550is disposed. Similarly stated, the mixing actuator member 6550 isslidably disposed against and between the mixing actuator guide 6119 andthe upper and lower retention protrusions, 6139 and 6138. In thismanner, the mixing actuator guide 6119, the lower retention protrusions6138, and upper retention protrusion 6139 act to guide the mixingactuator member 6550 when the mixing actuator member 6550 is movedwithin the housing 6100. For example, as described in further detailherein, the mixing actuator member 6550 is disposed in a space definedbetween the lower retention protrusions 6138 and the mixing actuatorguide 6119, thereby limiting the motion of the mixing actuator member tothe proximal and distal direction (i.e., limiting lateral movement ofthe mixing actuator member 6550). Furthermore, the mixing actuatormember 6550 can engage and/or slide against the upper retentionprotrusion 6139 such that the upper retention protrusion 6139facilitates a deformation of the mixing actuator member 6550 (e.g., themixing actuator member 6550 deforms, bends, curves, or otherwisereconfigures) when the mixing actuator member 6550 is moved within thehousing 6100.

The upper spring plate 6122 is disposed at the proximal end portion 6111of the first housing member 6110. The upper spring plate 6122 extendsfrom the inner surface 6116 and is configured to contact a proximal endportion 6421 of an energy storage member 6420 (also referred to hereinas a “insertion spring 6420” and/or “spring 6420”, see FIG. 68). In thismanner, when the medical injector 6000 is activated, the upper springplate 6122 limits proximal movement of the spring 6420 such that thespring 6420 expands distally to move the medicament delivery mechanism6300 and/or the transfer member 6600 in a distal direction (see e.g.,FIG. 73). Similarly stated, the upper spring plate 6122 receives a forcefrom the spring 6420 and applies an equal and opposite reaction force tothe proximal end portion 6421 of the spring 6420 such that a distal endportion 6422 of the spring 6420 expands in a distal direction, asdescribed in further detail herein.

The upper mixing actuator plate 6123 is disposed at the proximal endportion 6111 of the first housing member 6110 and extends from the innersurface 6116. The upper mixing actuator plate 6123 is configured toselectively engage the mixing actuator member 6550 of the systemactuator assembly 6500 (see FIG. 68). In this manner, the upper mixingactuator plate 6123 is configured to limit the proximal movement of themixing actuator member 6550, as described in further detail herein. Themixing actuator pivot protrusion 6124 defines an aperture 6125 thatreceives a pivot protrusion 6557 of the mixing actuator member 6550. Inthis manner, the mixing actuator member 6550 can pivot about the pivotprotrusion 6557 when the mixing actuator member 6550 is moved within thehousing 6100.

The inner surface 6116 of the first housing member 6110 further includescarrier engagement protrusions 6131 (see e.g., FIG. 25), and definesactuator grooves 6133 and battery isolation protrusion grooves 6135. Thecarrier engagement protrusions 6131 selectively engage a set of tabs6271 included in a carrier 6260 of the medicament container assembly6200 (see FIG. 71). The actuator grooves 6133 receive a portion of asafety lock actuator 6724 of the safety lock 6700 and the mixingactuator member 6550 of the system actuator assembly 6500. Similarly,the battery isolation protrusion grooves 6135 receive a portion of abattery isolation protrusion 6197 included in the cover 6190 when themedical injector 6000 is in the first configuration.

The first housing member 6110 further includes a set of latches 6128 anda set of openings 6129. The latches 6128 extend from portions of theinner surface 6116 of the first housing member 6110. The first housingmember 6110 can include any number of latches 6128 that can have anysuitable shape or size. For example, in some embodiments, the latches6128 vary in size. The latches 6128 are configured to engage portions ofthe second housing member 6140 to couple the first housing member 6110to the second housing member 6140, as described in further detailherein.

As shown in FIGS. 26 and 27, the second housing member 6140 includes anouter surface 6143 and an inner surface 6146 and a proximal end portion6141, a proximal cap 6103, and a distal end portion 6142. The secondhousing member 6140 further includes a set of tabs 6158 and defines aset of openings 6159. The second housing member 6140 can include anynumber of tabs 6158 such that the number of tabs 6158 corresponds to thenumber of latches 6128 of the first housing member 6110. Collectively,the latches 6128 of the first housing member 6110 and the tabs 6158 ofthe second housing member 6140 couple the first housing member 6110 tothe second housing member 6140. Similarly stated, the latches 6128 areconfigured to engage the tabs 6158 to define a lock fit. Moreover, asurface of each of the latches 6128 is in contact with a surface of thecorresponding tab 6158 to define a lock fit such that the first housingmember 6110 and the second housing member 6140 collectively define thehousing 6100. The openings 6129 of the first housing member 6110 and theopenings 6159 of the second housing member 6140 allow access to theinternal latches of the second housing member 6140 and the internal tabsof the first housing member 6110, respectively. In this manner, thefirst housing member 6110 can be decoupled from the second housingmember 6140.

The outer surface 6143 defines base retention recesses 6134A and 6134Band base rail grooves 6114, at the distal end portion 6142 of the secondhousing member 6140. The distal base retention recesses 6134A areconfigured to receive base connection knobs 6518 of the base 6510 whenthe base 6510 is in a first (prior to actuation) position relative tothe housing 6100. The proximal base retention recesses 6134B areconfigured to receive the base connection knobs 6518 of the base 6510when the base 6510 is in a second (actuated) position relative to thehousing 6100. The base retention recesses 6134A, 6134B have a taperedproximal sidewall and a non-tapered distal sidewall. This arrangementallows the base retention recesses 6134A, 6134B to receive the baseconnection knobs 6518 such that the base 6510 can move proximallyrelative to the housing 6100, but cannot move distally relative to thehousing 6100. Said another way, the distal base retention recesses 6134Aare configured to prevent the base 6510 from moving distally when thebase 6510 is in a first position and the proximal base retentionrecesses 6134B are configured to prevent the base 6510 from movingdistally when the base 6510 is in a second position. Similarly stated,the proximal base retention recesses 6134B and the base connection knobs6518 cooperatively lock the base 6510 to prevent undesirable movement ofthe base 6510 after the medical injector 6000 is actuated, and tofurther visually indicate to the user that the medical injector has beenactuated.

The base rail grooves 6114 are configured to receive guide members 6517of the base 6510. The guide members 6517 of the base 6510 and the baserail grooves 6114 of the second housing member 6140 engage each other ina way that allows the guide members 6517 of the base 6510 to slide in aproximal and/or distal direction within the base rail grooves 6114 whilelimiting lateral movement of the guide members 6517. This arrangementallows the base 6510 to move in a proximal and/or distal direction withrespect to the housing 6100 but prevents the base 6510 from moving in alateral direction with respect to the housing 6100.

The proximal cap 6103 extends from the proximal end portion 6141 of thesecond housing member 6140 and encloses the proximal end portion 6101 ofthe housing 6100 when the first housing member 6110 is coupled to thesecond housing member 6140.

The inner surface 6146 of the second housing member 6140 includes atransfer member guide 6147 and a movable member guide 6148. The transfermember guide 6147 is configured to engage a second guide surface 6626 ofthe transfer member 6600 (see FIG. 50). The second guide surface 6626 ofthe transfer member 6600 and the transfer member guide 6147 of thesecond housing member 6140 engage each other such that the second guidesurface 6626 of the transfer member 6600 slides in a proximal and/ordistal direction along a surface of the transfer member groove 6147while limiting lateral movement of the transfer member 6600. Similarly,the movable member guide 6148 is configured to engage a top portion 6302of the first movable member 6301 included in the medicament deliverymechanism 6300.

The inner surface 6146 of the second housing member 6140 furtherincludes a mixing actuator pivot protrusion 6154, latches 6163, and abattery clip protrusion 6176. The mixing actuator protrusion 6154defines and aperture 6155 that receives a pivot protrusion 6557 of themixing actuator member 6550 (e.g., similar to the pivot protrusion 6124of the first housing member 6110 described above). The latches 6163 areconfigured to receive tabs 6957 (see e.g., FIG. 52) included in theelectronic circuit system 6900 adjacent the audible output device 6956.The battery clip protrusion 6176 is configured to be coupled to thebattery clip 6910. In this manner, the latches 6163 can engage the tabs6957 of electronic circuit system 6900 and the battery clip 6910 canengage the battery clip protrusion 6176 to collectively couple theelectronic circuit system 6900 to the housing 6100. In otherembodiments, the electronic circuit system 6900 can be coupled to thehousing 6100 by other suitable means such as an adhesive, a clip, alabel and/or the like.

The inner surface 6146 of the second housing portion 6140 defines anaudible output device recess 6165, a battery recess 6166, multiple soundapertures 6173, an LED aperture 6178, a first actuator groove 6179 and asecond actuator groove 6180. A battery 6962 is disposed within thebattery recess 6166 when the electronic circuit system 6900 is coupledto the second housing portion 6140. Similarly, an audible output device6956 is disposed within an audible output device recess 6165 such that afront face of the audible output device 6956 is disposed adjacent thesound apertures 6173. In this manner, the sound apertures 6173 areconfigured to allow sound produced by the audio output device 6956 topass from the audio output device 6956 to a region outside of thehousing 6100. The LED aperture 6178 is configured to receive LEDs 6958Aand 6958B included in the electronic circuit system 6900 such that auser can view the LEDs 6958A, 6958B, which are described in more detailherein.

The inner surface 6146 includes a circuit board retention tab 6177 and acircuit board alignment protrusion 6167. The circuit board retention tab6177 is configured to engage a portion of a circuit board 6922 includedin the electronic circuit system 6900 such that the LEDs 6958A and 6958Bare maintained within the LED aperture 6178. With the electronic circuitsystem 6900 coupled to the second housing portion 6140 (as describedabove) the circuit board alignment protrusion 6167 can engage thecircuit board to ensure alignment of the electronic circuit system 6900relative to the second housing portion 6140.

The first actuator groove 6179 defined by the inner surface 6146 of thesecond housing portion 6140 is configured to be disposed adjacent thesafety lock actuator groove 6133 defined by the inner surface 6116 ofthe first housing portion 6110. As described above, the safety lockactuator groove 6133 of the first housing portion 6110 receives thesafety lock actuator 6724 of the safety lock 6700 such that the safetylock actuator 6724 can engage the mixing actuator member 6550. In use,the safety lock actuator 6724 moves the mixing actuator member 6550 inthe distal direction and a protrusion 6555 of the mixing actuator member6550 moves in the distal direction within the first actuator groove 6179to engage a portion of the electronic circuit system 6900, as describedin more detail herein. Similarly, the second actuator groove 6180defined by the inner surface 6146 of the second housing portion 6140 isconfigured to receive an actuator protrusion 6279 included in thecarrier 6260. In use, the carrier 6260 moves in the distal directionsuch that the actuator protrusion 6279 moves in the distal directionwithin the second actuator groove 6180 to engage a portion of theelectronic circuit system 6900, as further described herein.

As shown in FIG. 23, when the first housing member 6110 and the secondhousing member 6140 are assembled, the distal end portion 6102 of thehousing 6100 defines a needle aperture 6108 and a transfer member accessopening 6106. Similarly stated, the first housing member 6110 and thesecond housing member 6140 collectively define the needle aperture 6108and the transfer member access opening 6106. The needle aperture 6108 isconfigured to allow a needle 6216 (see e.g., FIGS. 73, 74, and 75) toexit the housing 6100 when the medical injector 6000 is actuated, and beretracted back into the housing 6100 upon completion of the injection,as described in further detail herein.

The transfer member access opening 6106 is configured to provide accessto the transfer member 6600 when the transfer member 6600 is disposedwithin the housing 6100. For example, in some embodiments, the transfermember 6600 can be disengaged from the medicament delivery mechanism6300 without moving the medicament delivery mechanism 6300 in the distaldirection. In this manner, the medical injector 6000 can be disabledsuch that the medicament delivery mechanism 6300 cannot engage themedicament container 6210 to convey a medicament 6240. For example, insome embodiments, a user can disengage the transfer member 6600 from themedicament delivery mechanism 6300, via the transfer member accessopening 6106, to safely dispose of an unused medical injector 6000 inwhich the medicament 6240 has expired. In such embodiments, the user canengage the guide protrusion 6624, via the transfer member access opening6106, and move the guide protrusion 6624 through the upper notch 6126,as described above. In other embodiments, an operator can manipulate thetransfer member within the housing 6100 via the transfer member accessopening 6106 during the assembly of the medical injector 6000.

FIGS. 28-50 show the medicament container assembly 6200, the systemactuator assembly 6500, the transfer member 6600 and the medicamentdelivery mechanism 6300 of the medical injector 6000. As shown in FIGS.28-32, the system actuator assembly 6500 includes the base 6510, arelease member 6530, and a mixing actuator assembly 6540. Although thebase 6510 and the release member 6530 are shown as being monolithicallyconstructed to form a portion of the system actuator assembly 6500, inother embodiments the system actuator assembly 6500 can include a basethat is constructed separately from (and later joined to) a releasemember. The release member 6530 has a proximal end portion 6531 and adistal end portion 6532. The release member 6530 extends from a proximalsurface 6511 of the base 6510.

As shown in FIGS. 29 and 30, the proximal end portion 6531 of therelease member 6530 is configured to engage the latch portion 6310 ofthe medicament delivery mechanism 6300 when the medical injector 6000 isin its first (or storage) configuration. In this manner, the proximalend portion 6531 of the release member 6530 maintains a first latchprotrusion 6315 of the latch portion 6310 in contact with the engagementsurface 6109 of the latch member notch 6120 of the housing 6100. Whenthe engagement surface 6109 is in contact with the first latchprotrusion 6315, the engagement surface 6109 applies a reaction force tothe first latch protrusion 6315 in response to the force applied by thespring 6420, which urges the transfer member 6600 and the medicamentdelivery mechanism 6300 in a distal direction. Similarly stated, whenthe first latch protrusion 6315 is in contact with the engagementsurface 6109, the engagement surface 6109 limits distal movement of thefirst latch protrusion 6315, and thus, the medicament delivery mechanism6300. In this manner, when the base 6510 is in a first position (i.e.,before actuation of the medical injector 6000), the release member 6530maintains the first latch protrusion 6315 within the latch member notch6120 and maintains the medical injector 6000 in the first configuration(e.g., non-actuated configuration). Furthermore, as shown in FIGS. 25and 30, the first portion 6110 of the housing 6100 includes a retentionprotrusion 6127 that engages the release member 6530. The retentionprotrusion contacts the release member 6530 to limit lateral deformationand/or movement of the release member 6530, thereby ensuring that thefirst latch protrusion is maintained within the latch member notch 6120.Similar stated, the retention protrusion maintains the alignment of thefirst latch protrusion 6315 and the release member 6530 is maintained.

As shown in FIG. 31, when the medical injector 6000 is in its firstconfiguration (i.e., the storage configuration), the safety lockprotrusions 6702 are disposed within the safety lock protrusion openings6514 of the base 6510 (see also FIG. 65), and engage a distal surface6107 of the housing 6100. In this manner, movement of the safety lock6700 in the proximal direction is prevented. Therefore, the systemactuator assembly 6500 and/or the base 6510 cannot move in the proximaldirection to actuate the medicament delivery mechanism 6300. Similarlystated, as shown in FIG. 31, when the medical injector 6000 is in itsfirst configuration (i.e., the storage configuration), the safety lockprotrusions 6702 engage the distal surface 6107 of the housing 6100 tolimit the proximal movement of the base 6510.

The mixing actuator assembly 6540 includes the mixing actuator member6550 and the safety lock 6700. As shown in FIGS. 31, 59 and 60 thesafety lock 6700 includes the safety lock actuator 6724. The safety lockactuator 6724 includes a protrusion 6726 and defines a channel 6725. Thechannel 6725 receives a catch 6553 included in the mixing actuatormember 6550 such that the protrusion 6726 can engage the catch 6553. Inthis manner, when the safety lock 6700 is moved in the distal directionto be removed from the medical injector 6000, the protrusion 6726contacts the catch 6553 of the mixing actuator member 6550 such that theremoval of the safety lock 6700 moves a distal portion 6552 of themixing release member 6550 in the distal direction, as described infurther detail herein.

As shown in FIGS. 32, 64 and 70, the mixing actuator member 6550includes a proximal end portion 6551 configured to engage the firstmovable member 6301 and the mixing piston 6370. More specifically, themixing actuator member 6550 includes a retention portion 6558 movablydisposed within an actuator member channel 6306 defined by the firstmovable member 6301. The retention portion 6558 is configured to movewithin the actuator member channel 6306 between a first position (e.g.,the locked position) and a second position (e.g., the mixing position).As described in more detail herein (see e.g., FIG. 45), the mixingpiston 6370 is disposed within the piston portion 6330 of the firstmovable member 6301 such that a proximal end portion 6371 of the mixingpiston 6370 can extend through a proximal end portion 6331 of the pistonportion 6330 to engage the mixing actuator 6550. In this manner, whenthe mixing actuator 6550 is in the first position, a set of retentionprotrusions 6379 of the mixing piston 6370 can engage the retentionportion 6558 of the mixing actuator 6550 such that the medical injector6000 is maintained in the first configuration. Furthermore, when thesafety lock 6700 is moved in the distal direction (e.g., removed fromthe medical injector 6000), the retention portion 6558 is moved to thesecond position such that the mixing piston 6370 is actuated to urge amixing event, as described in further detail herein.

The medicament container assembly 6200 includes a medicament container6210, the needle 6216, and the carrier 6260. The medicament container6210 includes a proximal end portion 6212, a distal end portion 6213,and a bypass 6220. The bypass 6220 can be a singular channel bypass orcan define multiple channels. Although the bypass 6220 is shown in FIGS.33 and 34 as an external bypass, in other embodiments, the bypass 6220can be internal to the medicament container and/or a part of theelastomeric member 6225. Said another way, in some embodiments thebypass can be configured such that the outer diameter of the medicamentcontainer 6210 is substantially constant. The bypass 6220 is configuredto facilitate the mixing and/or injection of a medicament containedwithin the medicament container 6210, as described in further detailherein. In particular, the bypass 6220 is configured to place variousvolumes within the medicament container 6210 in fluid communication witheach other.

As shown in FIGS. 33 and 34, the distal end portion 6213 of themedicament container 6210 includes a neck 6215 and a flanged end 6214configured to engage at least a portion of the carrier 6260 and theneedle 6216, as described below. Furthermore, the distal end portion6213 of the medicament container 6210 includes a sealing member 6219.The sealing member 6219 can be any suitable member, such as, forexample, an o-ring. In this manner, the sealing member 6219 isconfigured to engage an inner surface of the medicament container 6210and a portion of a needle hub 6264 included in the carrier 6260 (seee.g., FIG. 43) to define a fluidic seal, as described in further detailherein.

The proximal end portion 6212 of the medicament container 6210 receivesa first elastomeric member 6221, a second elastomeric member 6225, and athird elastomeric member 6229. In some embodiments, the firstelastomeric member 6221, the second elastomeric member 6225, and thethird elastomeric member 6229 are placed within the medicament container6210 during the fill process, as further described herein, to define adiluent volume 6236, a dry medicament volume 6237, and a void volume6238 (see, e.g., FIG. 34). Said another way, the diluent volume 6236 isa volume disposed within the medicament container 6210 defined between adistal surface 6223 of the first elastomeric member 6221 and a proximalsurface 6226 of the second elastomeric member 6225. The dry medicamentvolume 6237 is a volume disposed within medicament container 6210defined between a distal surface 6227 of second elastomeric member 6225and a proximal surface 6230 of third elastomeric member 6229 and thevoid volume 6238 is a volume disposed within the medicament container6210 defined between a distal surface 6231 of the third elastomericmember 6229 and the distal end portion 6213 of the medicament container6210.

As shown in FIG. 34, the diluent volume 6236, the dry medicament volume6237, and the void volume 6238 are defined by the positions of the firstelastomeric member 6221, the second elastomeric member 6225, and thethird elastomeric member 6229, relative to and/or within the medicamentcontainer 6210. In some embodiments, the diluent volume 6236 can containa medicament diluent, such as, for example, water. In some embodiments,the dry medicament volume 6237 can contain a lyophilized medicament(e.g., any suitable medicament produced via any suitable lyophilizingprocess) including any of the formulations and/or compositions describedherein.

As shown in FIGS. 28 and 29, the proximal end portion 6212 of themedicament container 6210 is coupled to and/or receives a portion of themedicament delivery mechanism 6300 such that medicament deliverymechanism 6300 can move the first elastomeric member 6221, the secondelastomeric member 6225, and/or the third elastomeric member 6229 to mixand/or inject the medicament disposed therein. More specifically, theproximal end portion 6212 of the medicament container 6210 can receive apiston portion 6330 of the first movable member 6301 and a secondmovable member 6370 (also referred to herein as a “mixing piston 6370”and shown, for example, in FIGS. 45 and 49).

The medicament container 6210 can have any suitable size (e.g., lengthand/or diameter). Moreover, the medicament container 6210, the pistonportion 6330, and/or the mixing piston 6370 can be collectivelyconfigured such that the piston portion 6330 and/or the mixing piston6370 travels a desired distance within the medicament container 6210(i.e., the “stroke”) during an injection event. In this manner, themedicament container 6210, the diluent contained within the diluentvolume 6236, the lyophilized medicament contained within the drymedicament volume 6237, the void volume 6238, the piston portion 6330,and the mixing piston 6370 can be collectively configured to provide adesired fill volume and delivery volume.

The length of the medicament container 6210 and the length of the pistonportion 6330 and/or the mixing piston 6370 can be configured such thatthe medicament delivery mechanism 6300 can fit in the same housing 6100regardless of the fill volume, the delivery volume and/or the ratio ofthe fill volume to the delivery volume. In this manner, the same housingand production tooling can be used to produce devices having variousdosages of the medicament. For example, in a first embodiment (e.g.,having a fill volume to delivery volume ratio of 0.4), the medicamentcontainer has a first length and the second movable member has a firstlength. In a second embodiment (e.g., having a fill volume to deliveryvolume ratio of 0.6), the medicament container has a second lengthshorter than the first length, and the second movable member has asecond length longer than the first length. In this manner, the strokeof the device of the second embodiment is longer than that of the deviceof the first embodiment, thereby allowing a greater dosage. Themedicament container of the device of the second embodiment, however, isshorter than the medicament container of the device of the firstembodiment, thereby allowing the components of both embodiments to bedisposed within the same housing and/or a housing having the samelength.

The first elastomeric member 6221, the second elastomeric member 6225,and the third elastomeric member 6229 can be of any design orformulation suitable for contact with the medicament (e.g., the diluentcontained in the diluent volume 6236 and/or a lyophilized medicamentcontained in the dry medicament volume 6237). For example, theelastomeric members 6221, 6225, and 6229 can be formulated to minimizeany reduction in the efficacy of the medicament that may result fromcontact (either direct or indirect) between the elastomeric members6221, 6225, and 6229 and the medicament. For example, in someembodiments, the first elastomeric member 6221, the second elastomericmember 6225, and the third elastomeric member 6229 can be formulated tominimize any leaching or out-gassing of compositions that may have anundesired effect on the medicament. In other embodiments, theelastomeric members 6221, 6225, and 6229 can be formulated to maintainits chemical stability, flexibility and/or sealing properties when incontact (either direct or indirect) with the medicament over a longperiod of time (e.g., for up to six months, one year, two years, fiveyears or longer).

As shown in FIGS. 35-38, the first elastomeric member 6221 includes aproximal surface 6222, the distal surface 6223, and a set of grooves6224. The grooves 6224 can be configured (e.g., have a size and/orshape) to allow expansion of the first elastomeric member 6221 within amedicament container 6210. Furthermore, the first elastomeric member6221 has a diameter D₁ and a height H₁. The radius R₁ (FIG. 19) can beany suitable radius. For example, in some embodiments, the diameter D₁is directly related to the inner diameter (e.g., diameter of an innersurface) of the walls of the medicament container 6210. In suchembodiments, the diameter D₁ can be configured to be slightly largerthan the inner diameter of the medicament container 6210. In thismanner, the sides of the first elastomeric member 6221 can engage theinner surface of the medicament container 6210 to define a fluid seal.Expanding further, with the diameter D₁ of the first elastomeric member6221 slightly larger than the inner radius of the medicament container6210, the grooves 6224 define a void such that the side of the firstelastomeric member 6221 can deform (e.g., be flattened) to occupy aportion of the void when disposed within or moved within the medicamentcontainer 6210. Similarly stated, the grooves 6224 allow the sides ofthe first elastomeric member 6221 to deform such that the diameter D₁can be reduced to be substantially similar to the inner diameter of themedicament container 6210.

The height H₁ (FIG. 37) of the first elastomeric member 6221 can be anysuitable height. In some embodiments, the height H₁ of the firstelastomeric member 6221 can be used to control the fill volume and/orthe delivery volume. In this manner, the first elastomeric member 6221can further be configured to control the stroke length of the pistonportion 6330 of the first movable member 6301 and/or the mixing piston6370. In some embodiments, the height H₁ of the first elastomeric member6221 can be such that, in use, the first elastomeric member 6221 doesnot substantially deform in a longitudinal direction (e.g., proximal anddistal direction). Thus, the height H₁ of the first elastomeric member6221 can be such that the first elastomeric member 6221 does notsubstantially deform when engaged by the first movable member 6301and/or the second movable member 6370. In some embodiments, the secondelastomeric member 6225 can be substantially similar to the firstelastomeric member 6221; therefore, the second elastomeric member 6225is not shown or described in detail herein.

As shown in FIGS. 39-42 the third elastomeric member 6229 includes aproximal surface 6230, a distal surface 6231, a set of grooves 6232, aproximal counter bore 6233, and a distal counter bore 6234. The grooves6232 can be configured (e.g., have a size and/or shape) to allowexpansion of the third elastomeric member 6229 within a medicamentcontainer 6210. Furthermore, the third elastomeric member 6229 has adiameter D₂, a height H₂, and a thickness T. The diameter D₂ (FIG. 40)can be any suitable diameter. For example, in some embodiments, thediameter D₂ is directly related to the inner diameter (e.g., diameter ofan inner surface) of the walls of the medicament container 6210. In suchembodiments, the diameter D₂ can be configured to be slightly largerthan the inner radius of the medicament container 6210. In this manner,the sides of the third elastomeric member 6229 can engage the innersurface of the medicament container 6210 to define a fluid seal.Expanding further, the grooves 6232 allow the sides of the thirdelastomeric member 6229 to deform such that the diameter D₂ can bereduced to be substantially similar to the inner diameter of themedicament container 6210. In some embodiments, the diameter D₂ of thethird elastomeric member 6229 can be substantially similar to thediameter D₁ of the first elastomeric member 6221. Similarly, in someembodiments, the height H₂ of the third elastomeric member 6229 can besubstantially similar to the height H₁ of the first elastomeric member.

The proximal counter bore 6233 and the distal counter bore 6234 define adepth P, a width W, an angle O, an external radius S, and an internalradius Q. In use, the third elastomeric member 6229 is configured toengage a portion of the carrier 6260 and the needle 6216. Morespecifically, the distal counter bore 6234 receives a portion of theneedle hub 6264, as shown in FIGS. 73 and 74, described in furtherdetail herein. The width W and depth D of the distal counter bore 6234can be such that an upper portion 6267 of the needle hub 6264 can bedisposed within the distal counter bore 6234 when the medicamentcontainer 6210 is moved to a second container position (in which theneedle 6216 is placed into fluid communication with the dry medicamentvolume 6237). Furthermore, the distal counter bore 6234 and the proximalcounter bore 6233 reduces the thickness T of the portion of the thirdelastomeric member 6229 through which the needle 6216 penetrates, asfurther described herein.

In some embodiments a first elastomeric member, a second elastomericmember, and/or a third elastomeric member of an injector can be similarto first elastomeric member 6221 or third elastomeric member 6229. Saidanother way, in some embodiments, a medicament container can includethree elastomeric members similar to the first elastomeric member 6221.In other embodiments, a medicament container can include threeelastomeric members similar to the third elastomeric member 6229. Forexample, in such embodiments, the first elastomeric member and thesecond elastomeric member can define a proximal counter bore and adistal counter bore and can be configured to further control the fillvolume and/or delivery volume of a diluent and/or lyophilized medicamentdisposed within the medicament container.

As described above, the medicament container 6210 is configured toengage and/or be coupled to the carrier 6260 (see e.g., FIGS. 28 and29). Referring to FIGS. 43 and 44, the carrier 6260 includes a proximalend portion 6261, a distal end portion 6262, a needle hub 6264, anelectronics engagement portion 6278, a first retention arm 6280, and asecond retention arm 6290. The first retention arm 6280 and the secondretention arm 6290 extend, in the proximal direction, from acontainer-mounting portion 6263 disposed at the distal end portion 6262of the carrier 6260. The container-mounting portion 6263 is configuredto selectively engage the flanged end 6214 of the medicament container6210. More specifically, the carrier 6260 includes the set of tabs 6271that include a container shoulder 6272. As described above, the set oftabs 6271 are configured to selectively engage the container engagementprotrusions 6131 of the housing 6100 (see e.g., FIG. 31). Thearrangement of the tabs 6271, the container engagement protrusions 6131,and the container shoulders 6272 are such that the flanged end 6214 ofthe medicament container 6210 can selectively engage the containershoulder 6272 when moving between the first container position and thesecond container position, as described in further detail herein.

The needle hub 6264 includes a base portion 6265, an upper portion 6267,and a lower needle port 6268. The base portion 6265 includes a proximalsurface 6266 from which the upper portion 6267 extends in the proximaldirection. The lower needle port 6268 is configured to extend from thebase portion 6265 in the distal direction. The needle hub 6264 defines aneedle passageway 6270 that receives a proximal end portion 6217 of theneedle 6216 (see e.g., FIG. 31). Expanding further, the needlepassageway 6270 can include an inner surface (not shown) that includesany suitable feature to couple the needle 6216 within the needle hub6264. For example, in some embodiments, the inner surface defining theneedle passageway 6270 can include a set of protrusions configured todefine a friction fit with the needle 6216. In other embodiments, anadhesive can be applied to the inner surface defining the needlepassageway 6270 to couple the needle 6216 to the needle hub 6264. Theneedle hub 6264 is configured to engage a portion of the medicamentcontainer 6210 when the medicament container 6210, as shown in FIG. 31.

The electronics engagement portion 6278 includes an activator protrusion6279. The electronics engagement portion 6278 extends from a surface ofthe first retention arm 6280 and is configured to engage the electroniccircuit system 6900. More specifically, the activator protrusion 6279 ofthe electronics engagement portion 6278 is disposed within a secondactuation portion 6946 of the electronic circuit system 6900 when thecarrier 6260 is in the first position. When the carrier 6260 is moved tothe second position (i.e., during the injection event), the activatorprotrusion 6279 moves in the distal direction to actuate the secondactuation portion 6946 of the electronic circuit system 6900 asdescribed in further detail herein.

The first retention arm 6280 includes an inner surface 6281 and an outersurface 6282. The inner surface 6281 engages the medicament container6210 when the medicament container 6210 is disposed within and/or iscoupled to the container-mounting portion 6263. The outer surface 6282defines a channel 6283 and includes a retraction spring surface 6284.The channel 6283 receives a retraction spring 6440 (FIG. 29) such that aproximal end portion 6441 of the retraction spring 6440 is in contactwith the retraction spring surface 6284. The outer surface 6282 furtherdefines a slot 6285. The slot 6285 is configured to receive a guideprotrusion 6303 of the first movable member 6301. In this manner, theset of walls 6286 that define the slot 6285 can engage the guideprotrusion 6303 of the first movable member 6301 such that the topportion 6302 of the first movable member 6301 is aligned with thecarrier 6260 when the first movable member 6301 moves relative to thecarrier 6260. Furthermore, during a retraction event, a distal surfaceof the wall 6286 defining the slot 6285 can engage the guide protrusion6303 to transfer a portion of a retraction force, exerted by theretraction member 6440, on the first movable member 6301 such that thefirst movable member 6301 moves in the proximal direction when thecarrier 6260 is retracted.

The second retention arm 6290 includes an inner surface 6291 and anouter surface 6292. Similar to the first retention arm 6280, the innersurface 6291 of the second retention arm 6290 engages the medicamentcontainer 6210 when the medicament container 6210 is disposed withinand/or is coupled to the container-mounting portion 6263. In thismanner, the container-mounting portion 6263, the inner surface 6281 ofthe first retention arm 6280, and the inner surface 6291 of the secondretention arm 6290 act to couple the medicament container 6210 to thecarrier 6260. The outer surface 6292 defines a channel 6293, andincludes a latch 6294. The channel 6293 receives a protrusion 6313included in the latch portion 6310 of the first movable member 6301. Inthis manner, the protrusion 6313 can move within the channel during aninjection event.

The medicament delivery mechanism 6300 (all or portions of which canalso be referred to as a “movable assembly”) includes the first movablemember 6301, the second movable member 6370 (the mixing piston 6370),and a mixing spring 6390 (see e.g., FIGS. 45-49). The first movablemember 6301 includes the top portion 6302, the latch portion 6310, andthe piston portion 6330. The top portion 6302 includes the guideprotrusion 6303 and the actuator member channel 6306 (for receiving themixing actuator member 6550), as described above.

The latch portion 6310 includes a proximal end portion 6311 and a distalend portion 6312 (see e.g., FIGS. 46 and 47). The proximal end portion6311 is disposed at and/or is joined with the top portion 6302 of thefirst movable member 6301. Similarly stated, the latch portion 6310 isconfigured to extend from the top portion 6302 of the first movablemember 6301 in the distal direction. The distal end portion 6312 of thelatch portion 6310 includes a latch arm 6314 having a first latchprotrusion 6315, a second latch protrusion 6317, and a protrusion 6313,and defines an opening 6316 and channel 6322. As described above, thefirst latch protrusion 6315 is configured to engage the release member6530 of the base 6510 and the engagement surface 6109 of the latchmember notch 6120. In particular, as shown in FIG. 30, the releasemember 6530 urges, bends and/or deforms the latch arm 6314 to maintainthe first latch protrusion 6315 within the latch member notch 6120.Thus, the latch arm 6314 can be constructed from a material havingsufficient flexibility such that the release member 6530 can urge, bendand/or deform the latch arm 6314 to engage the first latch protrusion6315 with the latch member notch 6120.

The opening 6316 of the latch portion 6310 is defined between a surfaceof the distal end portion 6312 of the latch portion 6310 and a proximalsurface 6318 of the second latch protrusion 6317 (see e.g., FIG. 47).The opening 6316 is configured to receive the latch 6620 of the transfermember 6600 (see e.g., FIGS. 50 and 29). More particularly, when themedical injector 6000 is in the first configuration (i.e., prior toactuation), the proximal surface 6318 of the second latch protrusion6317 is in contact with a distal surface 6621 of the latch 6620 of thetransfer member 6600. In this manner, the transfer member 6600 cantransfer a force produced by the spring 6420 to the latch portion 6310of the first movable member 6300 to move the medicament deliverymechanism 6300 in the distal direction when the medical injector 6000 isactuated. Similarly stated, this arrangement allows the medicamentdelivery mechanism 6300 and/or the first movable member 6301 to movewith and/or remain coupled to the transfer member 6600 during theinsertion and/or injection operation. The channel 6322 receives thesecond retention arm 6290 of the carrier 6260. In this manner, thesecond retention arm 6290 can move within the channel 6322 between thefirst position and the second position. Similarly stated, thisarrangement allows at least a portion of the carrier 6260 to move withinthe first movable member 6301 when the movable member 6301 movesrelative to the carrier 6260 (e.g., during an injection event).

The piston portion 6330 includes a proximal end portion 6331 and adistal end portion 6332 and defines an opening 6333 (see e.g., FIG. 48).More specifically, the proximal end portion 6331 is disposed at and/orjoined with a bottom surface 6304 of the top portion 6302 of the firstmovable member 6301. Expanding further, the piston portion 6330 extendsfrom the bottom surface 6304 of the top portion 6302 and defines anannular shape. Thus, the opening 6333 is defined by the inner walls ofthe piston portion 6330. The distal end portion 6332 is configured to bedisposed at least partially within the proximal end portion 6212 of themedicament container 6210 (see e.g., FIG. 68).

As shown in FIG. 45, the piston portion 6330 is configured to receive atleast a portion of the mixing spring 6390 and the mixing piston 6370.More specifically, the medicament delivery mechanism 6300 is configuredsuch that when the medical injector 6000 is in the first configuration(e.g., the storage configuration), the mixing spring 6390 is disposedwithin the piston portion 6330 and the mixing piston 6370 in a first(e.g., compressed) configuration (see e.g., FIG. 68). Furthermore, themixing piston 6370 (e.g., the second movable member 6370) is disposedwithin the piston portion 6330 such that a proximal end portion 6371 ofthe mixing piston 6370 extends, in the proximal direction, through thepiston portion 6330 of the first movable member 6301. Similarly stated,when the mixing piston 6370 is in a first position (the storageposition), the proximal end portion 6371 extends through the proximalend portion of the first movable member 6301 such that the mixing piston6370 can be retained within the piston portion 6330 of the first movablemember 6301, as described below.

The mixing piston 6370 includes the proximal end portion 6371 and adistal end portion 6372. The distal end portion 6372 includes a base6373 with a proximal surface 6374 and a distal surface 6375. Theproximal surface 6374 of the base 6373 defines a spring seat thatreceives a distal end portion 6392 of the mixing spring 6390. The distalsurface 6375 of the base 6373 is configured to engage the proximalsurface 6222 of the first plunger 6221, as described above. The mixingpiston 6370 further includes a set of walls 6376 that extend in theproximal direction from the proximal surface 6374 of the base 6373. Thewalls 6376 define channels 6377 and include tabs 6378 that selectivelyengage the piston portion 6330 of the first movable member 6301. Thetabs 6378 are configured to move between a first configuration (e.g., aretracted configuration) and a second configuration (e.g., an extendedconfiguration). In some embodiments, the tabs 6378 can define apre-stress load such that the tabs 6378, without an external forceapplied, are in the extended configuration. In some embodiments, thetabs 6378 can be maintained in the first configuration by the innersurface of the piston portion 6330. In such embodiments, the tabs 6378can be moved to the second configuration when the mixing piston 6370 ismoved in the distal direction to the second position, as described infurther detail herein. As described herein, the tabs 6378 (also referredto as a retention portion or retention members) are configured tocontact and/or engage the distal end surface 6334 to limit proximalmovement of the mixing piston 6370 relative to the first movable member6301 (i.e., retraction of the mixing piston 6370 into the piston portion6330) after the mixing piston 6370 has been actuated. This arrangementprevents retraction of the mixing piston 6370 when the force produced bythe spring 6420, which can exceed the force produced by the mixingspring 6390, is applied to the first movable member 6301 via thetransfer member 6600.

The proximal end portion 6371 includes retention protrusions (orportions) 6379 and alignment grooves 6380. The retention grooves 6379extend laterally from a surface of the walls 6376 that define thechannels 6377. Similarly stated, as shown in FIG. 49, the retentionprotrusions 6379 extend into the channels 6377. As described above, theproximal end portion 6371 of the mixing piston 6370 extends through theproximal end portion 6331 of the piston portion 6330. In this manner,the alignment grooves 6380 receive alignment protrusions 6305 includedin the top portion 6302 of the first movable member 6301 (see e.g., FIG.32). Furthermore, when the medical injector 6000 is in the firstconfiguration, the retention protrusions 6379 engage the retentionportion 6558 of the mixing actuator member 6550. Thus, when the medicalinjector 6000 is in the first configuration, the mixing piston 6370 isin a first (e.g., locked) position, in which the movement of the mixingpiston 6370 relative to the first movable member 6301 is limited and/orprevented.

The arrangement of the first movable member 6301, the mixing piston6370, and the mixing actuator member 6550 is such that when the mixingactuator member 6550 is moved to actuate a mixing event, the mixingspring 6390 expands to move the mixing piston 6370 in the distaldirection. More particularly, when the retention protrusions 6379 are incontact with the retention portion 6558 of the mixing actuator member6550, a lock surface 6560 (see e.g., FIG. 64) of the retention portion6558 applies a reaction force to a distal surface of the retentionprotrusions 6379 equal to the force exerted by the mixing spring 6390.Therefore, when the mixing actuator member 6550 is moved to the secondposition (e.g., no longer in contact with the retention protrusions6379) the reaction force is removed and the mixing spring 6390 expands.Furthermore, the bottom surface 6304 of the top portion 6302 of thefirst movable member 6301 engages the proximal end portion 6391 of themixing spring 6390 such that when the mixing spring 6390 expands, thedistal end portion 6392 moves in the distal direction. Thus, theexpansion of the mixing spring 6390 is such that the mixing spring 6390exerts a force on the mixing piston 6370 to move the mixing piston 6370in the distal direction, as further described herein.

Referring to FIG. 50, the transfer member 6600 includes a proximal endportion 6610 and a distal end portion 6611, and is configured to movebetween a first configuration (see e.g., FIGS. 50 and 68, in which thetransfer member 6600 is engaged to the first movable member 6301) and asecond configuration (see e.g., FIG. 76, in which the transfer member6600 is disengaged from the first movable member 6301). The proximal endportion 6610 is substantially cylindrical and is configured to engageand/or contact the spring 6420. Moreover, the transfer member 6600includes a ring protrusion 6612 that includes a proximal surface 6613defining a spring seat 6615. The distal end portion 6422 of the spring6420 is disposed about the proximal end portion 6610 of the transfermember 6600, and is configured to engage the spring seat 6615 defined bythe ring protrusion 6612.

The transfer member 6600 further includes a latch extension 6617 thatextends from a distal surface 6614 of the ring protrusion 6612. Thelatch extension 6617 includes the latch arm 6618 and a bendable portion6622. The latch arm 6618 includes the first guide surface 6619, thelatch 6620, the guide protrusion 6624, and the second guide surface6626. As described above, the latch extension 6617 extends in a distaldirection from the ring protrusion 6612 of the transfer member 6600. Thelatch arm 6618 is configured to extend from the distal end portion 6611of the transfer member 6610. Similarly stated, the latch arm 6618extends from a distal end portion of the latch extension 6617. Moreover,the latch arm 6618 extends from the distal end portion of the latchextension 6617 at a suitable angle such that the latch 6620 is receivedwithin the opening 6316 of the first movable member 6301 (see e.g.,FIGS. 46 and 47). For example, in some embodiments, the latch arm 6618extends from the distal end portion of the latch extension 6617 at anacute angle. The first guide surface 6619, the second guide surface6626, and the guide protrusion 6624 engage the transfer member guide6117 of the housing 6100, as described above.

The latch 6620 extends from a proximal end portion 6623 of the latch arm6618. The latch 6620 is configured to engage the second latch protrusion6317 of the latch portion 6310 of the first movable member 6301. Asdescribed above, the distal surface 6621 of the latch 6620 is configuredto be in contact with a proximal surface 6318 of the second latchprotrusion 6317 when the transfer member 6600 is in the firstconfiguration. In this manner, the transfer member 6600 transfers aforce from the actuation of the spring 6420 to the first movable member6301 and/or the medicament delivery mechanism 6300 to move themedicament delivery mechanism 6300 in the distal direction within thehousing 6100. In this manner, the force produced by the spring 6420,which is offset from the medicament delivery mechanism 6300 and/or themedicament container 6210, results in both the insertion of the needle6216 and injection of the medicament within the medicament container6210. Although, as described below, the mixing spring 6390 produces aforce to mix a diluent and a lyophilized medicament, in otherembodiments, a portion of the force produced by the spring 6420 can beused to facilitate the mixing process.

Furthermore, when the transfer member 6600 has moved a desired distancein the distal direction in response to the force produced by theactuation of the spring 6420 (e.g., upon completion of the medicamentinjection), the guide protrusion 6624 of the latch 6620 aligns with thelower notch 6121 of the housing 6100 (see e.g., FIG. 25) to allow thetransfer member 6600 to be moved to the second configuration (see e.g.,FIG. 76). Expanding further, when the guide protrusion 6624 is alignedwith the lower notch 6121 the guide protrusion 6624 moves through thelower notch 6121 thereby placing transfer member 6600 in the secondconfiguration. In this manner, the latch 6620 can be disengaged from thesecond latch protrusion 6317. Similarly stated, when the transfer member6600 is in its second configuration, the late 6620 is disengaged fromthe first movable member 6301, and the force produced by the spring 6420is no longer transferred to the medicament delivery mechanism 6300. Inparticular, the bendable portion 6622 of the latch extension 6617 isconfigured to bend, relative to the latch extension 6617. In someembodiments, the bendable portion 6622 can define a pre-stress load suchthat when the transfer member 6600 is in the first configuration, thebendable portion 6622 is in a bent or deformed position. Thus, when theguide protrusion 6624 is aligned with the lower notch 6121, the bendableportion 6622 of the transfer member 6600 bends (e.g., returns to anundeformed position), thereby placing the transfer member 6600 in itssecond configuration (see FIG. 76).

When the transfer member 6600 is in its second configuration, the latch6620 is disengaged from the second latch protrusion 6317 of the firstmovable member 6301. Said another way, when the guide protrusion 6624 ofthe latch 6620 is aligned with the lower notch 6121, the bendableportion 6622 of the transfer member 6600 bends (e.g., returns to theundeformed configuration) such that the angle between the latch arm 6618and the latch extension 6617 is reduced, thus disengaging the transfermember 6600 from the medicament delivery mechanism 6300. Said yetanother way, when the transfer member 6600 is in its secondconfiguration, the medicament delivery mechanism 6300 is isolated and/orno longer operably coupled to the spring 6420. In this manner, asdescribed below, the retraction force exerted by the retraction spring6440 moves the medicament delivery mechanism 6300 and/or the medicamentcontainer assembly 6200 proximally within the housing 6100 to retractthe needle 6216.

FIGS. 51-56 show the electronic circuit system 6900. The electroniccircuit system 6900 of the medical injector 6000 includes a printedcircuit board 6922, a battery assembly 6962, an audio output device6956, two light emitting diodes (LEDs) 6958A, 6958B and a battery clip6910. The electronic circuit system 6900 is disposed within the housing6100 (see e.g., FIG. 69). As described herein, the electronic circuitsystem 6900 is configured to output an electronic output associated withthe use of the medical injector 6000.

As described above, the electronic circuit system 6900 is coupled to thesecond housing member 6140 of the housing 6100. In some embodiments, theelectronic circuit system 6900 can be coupled to the housing 6100 by anysuitable means such as an adhesive, a clip, a label and/or the like. Asdescribed in more detail herein, the battery clip protrusion 6176 of thesecond housing member 6140 is configured to hold the battery clip 6910in place. Similarly stated, the battery clip protrusion 6176 of thesecond housing member 6140 is configured to exert a force on the batteryclip 6910 to ensure that electrical contact between the battery assembly6962 and the battery clip 6910 is maintained when the battery isolationprotrusion 6197 of the cover 6190 is removed.

As shown and described above with respect to FIG. 26, the second housingmember 6140 defines the sounds apertures 6173, the LED aperture 6178,the first actuator groove 6179, and the second actuator groove 6180. Theaudible output device 6956 is disposed within the recess 6165 defined bythe inner surface 6146 of the second housing member 6140 such that thefront face of the audible output device 6956 is disposed adjacent thesound apertures 6173. In this manner, the sound apertures 6173 areconfigured to allow sound produced by the audio output device 6956 topass from the audio output device 6956 to a region outside of thehousing 6100. Furthermore, the audio output device 6956 includes thetabs 6957 configured to engage the latches 6163 of the second housingmember 6140.

The first actuator groove 6179 defined by the second housing member 6140is disposed adjacent the safety lock actuator groove 6133 defined by thefirst housing member 6110. In this manner, the first actuator groove6179 of the second housing member 6140 and the safety lock actuatorgroove 6133 of the first housing member 6110 collectively receive theprotrusion 6555 of the mixing actuator member 6550 (see e.g., FIGS. 53and 64), which is described in more detail herein. The second actuatorgroove 6180 of the second housing member 6140 is configured to receivethe protrusion 6279 of the electronic engagement portion 6278 includedin the carrier 6260 (see e.g., FIGS. 44 and 53), which is described inmore detail herein.

The printed circuit board 6922 of the electronic circuit system 6900includes a substrate 6924, a first actuation portion 6926 and a secondactuation portion 6946. The substrate 6924 of the printed circuit board6922 includes the electrical components for the electronic circuitsystem 6900 to operate as desired. For example, the electricalcomponents can be resistors, capacitors, inductors, switches,microcontrollers, microprocessors and/or the like. The printed circuitboard 6922 may also be constructed of materials other than a flexiblesubstrate such as a FR4 standard board (rigid circuit board).

As shown in FIGS. 53-56, the first actuation portion 6926 includes afirst electrical conductor 6934 and defines an opening 6928 having aboundary 6929. The opening 6928 of the first actuation portion 6926 isconfigured to receive the protrusion 6555 of the mixing actuator member6550. The boundary 6929 of the opening 6928 has a discontinuous shape,such as, for example, a teardrop shape, that includes a stressconcentration riser 6927. The discontinuity and/or the stressconcentration riser 6927 of the boundary 6929 can be of any suitableshape to cause the substrate 6924 to deform in a predetermined directionwhen the protrusion 6555 of the mixing actuator member 6550 is movedrelative to the opening 6928, as shown by the arrow NN in FIG. 55.

The opening 6928 is defined adjacent the first electrical conductor 6934that electronically couples the components included in the electroniccircuit system 6900. The first electrical conductor 6934 includes afirst switch 6972, which can be, for example a frangible portion of thefirst electrical conductor 6934. In use, when the safety lock 6700 ismoved in the distal direction from the first position to the secondposition, the protrusion 6726 of the actuator 6724 engages the catch6553 of the mixing actuator member 6550 and moves the distal end portion6551 of the mixing actuator member 6550 in the distal direction. In thismanner, the protrusion 6555 of the mixing actuator member 6550 movesfrom a first position (see e.g., FIG. 54) to a second position (seee.g., FIG. 55). The movement of the mixing actuator member 6550 causesthe protrusion 6555 to move within the first opening 6928, as indicatedby the arrow NN in FIG. 55. The movement of the protrusion 6555 tearsthe first actuation portion 6926 of the substrate 6924, therebyseparating the portion of the first electrical conductor 6934 includingthe first switch 6972. Said another way, when the safety lock 6700 ismoved from its first position to its second position (see e.g., FIG.69), the mixing actuator member 6550 is actuated and the protrusion 6555moves the first switch 6972 from a first state (e.g., a state ofelectrical continuity) to a second state (e.g., a state of electricaldiscontinuity). Said yet another way, when the safety lock 6700 is movedfrom its first position to its second position, the mixing actuatormember 6550 disrupts the first electrical conductor 6934.

The second actuation portion 6946 includes a second electrical conductor6935 and defines an opening 6945 having a boundary 6949. As shown inFIGS. 53-56, the opening 6945 of the second actuation portion 6946 isconfigured to receive the protrusion 6279 of the electronic engagementportion 6278 of the carrier 6260. The boundary 6949 of the opening 6945has a discontinuous shape that includes a stress concentration riser6947. The discontinuity and/or the stress concentration riser 6947 ofthe boundary 6949 can be of any suitable shape to cause the substrate6924 to deform in a predetermined direction when the protrusion 6279 ofthe carrier 6260 is moved in a proximal direction relative to theopening 6945, as shown by the arrow OO in FIG. 56.

The second electrical conductor 6935 includes a second switch 6973,which can be, for example, a frangible portion of the second electricalconductor 6935. In use, when the carrier 6260 is moved from its firstposition to its second position (see e.g., FIG. 73), the protrusion 6555moves in a distal direction, substantially parallel to a plane definedby a surface of the second actuation portion 6946 of the substrate 6924.The distal movement of the protrusion 6555 tears the second actuationportion 6946 of the substrate 6924, thereby separating the portion ofthe second electrical conductor 6935 including the second switch 6973.Said another way, when the carrier 6260 is moved from its first positionto its second position, the protrusion 6555 moves the second switch 6973from a first state (e.g., a state of electrical continuity) to a secondstate (e.g., a state of electrical discontinuity). In some embodiments,other portions the medical injector 6000 can engage the first electricalconductor 6934 or the second electrical conductor 6935 to actuate theelectronic circuit system 6900. For example, in some embodiments, a basecan include an actuator such that the proximal movement of the base canurge an actuator to move in the proximal direction to actuate theelectronic circuit system.

In some embodiments, the safety lock 6700, the mixing actuator member6550 and/or other portions of the medical injector 6000 can beconfigured to interact with mechanical and/or optical switches toproduce an electronic output in a reversible manner. For example, insome embodiments, the electronic circuit system 6900 can include one ormore optical switches configured to change states based on the sensedposition of one of the plungers within the medicament container 6210. Insome such embodiments, the electronic circuit system 6900 can produce anoutput when the mixing event has ended based at least in part upon thelocation of a plunger within the medicament container.

The battery assembly 6962 of the electronic circuit system 6900 includestwo batteries stacked on top of one another. In other embodiments, theelectronic circuit system can include any number of batteries and/or anysuitable type of power source. In some embodiments, for example, thebattery assembly can include Lithium batteries such as, for example,CR61616, CR62016s, type AAA or the like. The battery assembly 6962 has afirst surface 6964 and a second surface 6966. The first surface 6964 ofthe battery assembly 6962 can contact an electrical contact (not shown)disposed on the substrate 6924. The second surface 6966 of the batteryassembly 6962 is configured to contact a contact portion 6918 of adistal end portion 6916 of a battery clip 6910. When both the electricalcontact of the substrate 6924 and the contact portion 6918 of the distalend portion 6916 of the battery clip 6910 contact the battery assembly6962, the batteries of the battery assembly 6962 are placed inelectrical communication with the electronic circuit system 6900. Saidanother way, when the electrical contact of the substrate 6924 and thecontact portion 6918 of the distal end portion 6916 of the battery clip6910 contact the battery assembly 6962, the battery assembly 6962 isconfigured to supply power to the electronic circuit system 6900.

The battery clip 6910 (shown in FIG. 51) includes a proximal end portion6912 and a distal end portion 6916. The proximal end portion 6912defines a retention aperture (not shown). The retention aperture isconfigured to receive a screw 6911 to couple the battery clip 6910 tothe battery clip protrusion 6176 of the second housing member 6140. Inthis manner, the battery clip protrusion 6176 maintains the position ofthe battery clip 6910 with respect to the electronic circuit systemhousing 6170 and/or the battery assembly 6962.

The distal end portion 6916 of the battery clip 6910 includes a contactportion 6918 and an angled portion 6917. As described above, the contactportion 6918 is configured to contact the second surface 6966 of thebattery assembly 6962 to place the battery assembly 6962 in electricalcommunication with the electronic circuit system 6900. The angledportion 6917 of the distal end portion 6916 of the battery clip 6910 isconfigured to allow a proximal end portion 6236 of a battery isolationprotrusion 6197 (see e.g., FIG. 58) to be disposed between the secondsurface 6966 of the battery assembly 6962 and the contact portion 6918of the distal end portion 6916 of the battery clip 6910. When thebattery isolation protrusion 6197 is disposed between the second surface6966 of the battery assembly 6962 and the contact portion 6918 of thedistal end portion 6916 of the battery clip 6910, the electrical pathbetween the battery assembly 6962 and the remainder of the electricalcircuit system 6900 is disrupted, thereby removing power from theelectronic circuit system 6900. The contact portion 6918 of the distalend portion 6916 of the battery clip 6910 is biased such that when thebattery isolation protrusion 6197 is removed, the contact portion 6918will move into contact the second surface 6966 of the battery assembly6962, thereby restoring electrical communication between the batteryassembly 6962 and the electronic circuit system 6900. In someembodiments, the battery isolation protrusion 6197 can be repeatedlyremoved from between the second surface 6966 of the battery assembly6962 and the contact portion 6918 of the distal end portion 6916 of thebattery clip 6910 and reinserted. Said another way, the batteryisolation protrusion 6197 and the battery clip 6910 collectively form areversible on/off switch.

The audio output device 6956 of the electronic circuit system 6900 isconfigured to output audible sound to a user in response to use of themedical injector 6000. In some embodiments, the audible output device6956 can be a speaker. In some embodiments, the audible sound can be,for example, associated with a recorded message and/or a recordedspeech. In other embodiments, the audible instructions can be an audiblebeep, a series of tones and/or or the like.

In some embodiments, the medical injector 6000 can have a networkinterface device (not shown) configured to operatively connect theelectronic circuit system 6900 to a remote device (not shown) and/or acommunications network (not shown). In this manner, the electroniccircuit system 6900 can send information to and/or receive informationfrom the remote device. The remote device can be, for example, a remotecommunications network, a computer, a compliance monitoring device, acell phone, a personal digital assistant (PDA) or the like. Such anarrangement can be used, for example, to download replacementprocessor-readable code from a central network to the electronic circuitsystem 6900. In some embodiments, for example, the electronic circuitsystem 6900 can download information associated with a medical injector6000, such as an expiration date, a recall notice, updated useinstructions or the like. Similarly, in some embodiments, the electroniccircuit system 6900 can upload compliance information associated withthe use of the medical injector 6000 via the network interface device.

FIGS. 57 and 58 show the cover 6190 of the medical injector 6000. Thecover 6190 includes a proximal end portion 6191 and a distal end portion6192, and defines a cavity 6196. The cavity 6196 of the cover 6190 isconfigured to receive at least a portion of the housing 6100. Thus, whenthe portion of the housing 6100 is disposed within the cover 6190, thecover 6190 blocks an optical pathway between the medicament container6210 and a region outside of the housing 6100. Similarly stated, whenthe portion of the housing 6100 is disposed within the cover 6190, thecover 6190 is obstructs the first status indicator aperture 6130 and/orthe second status indicator aperture 6160 of the housing 6100 to reducethe amount of light transmitted to the medicament within the medicamentcontainer 6210. In this manner, the life of the medicament can beextended by the prevention and/or reduction of degradation to themedicament that may be caused by ultra-violet radiation. In someembodiments, for example, when the medicament is not degraded byultra-violet radiation, the cover 6190 can include status indicatorapertures similar to the status indicator aperture 6130 and/or 6160.

As described above, the electronic circuit system 6900 can be actuatedwhen the housing 6100 is at least partially removed from the cover 6190.More particularly, the distal end portion 6192 of the cover 6190includes the battery isolation protrusion 6197. The battery isolationprotrusion 6197 includes a proximal end portion 6198 and a distal endportion 6199. The proximal end portion 6198 of the battery isolationprotrusion 6197 is configured to be removably disposed between thesecond surface 6966 of the battery assembly 6962 and the contact portion6918 of the distal end portion 6916 of the battery clip 6910, asdescribed above.

The cover 6190 can be any suitable configuration and can include anysuitable feature. For example, the cover 6190 includes notches 6194disposed at the proximal end of the cover 6190. In some embodiments, thenotches 6194 can be used to reduce the material needed to manufacturethe cover 6190. In some embodiments, the cover 6190 can include openingsthat can receive inserts (not shown). The inserts can be a flexibleinserts and can be configured to increase friction between the cover6190 and a surface. For example, the inserts can increase the frictionbetween the cover 6190 and a surface on which the medical injector 6000is placed, to prevent sliding.

FIGS. 59-63 show the safety lock 6700 of the medical injector 6000. Thesafety lock 6700 of the medical injector 6000 includes a proximalsurface 6730, a distal surface 6740 opposite the proximal surface 6730and a needle sheath 6820. The safety lock 6700 defines a needle sheathaperture 6703 and a battery isolation protrusion aperture 6728. Thebattery isolation protrusion aperture 6728 is configured to receive thebattery isolation protrusion 6197 of the cover 6190 such that thebattery isolation protrusion 6197 can be disposed within the housing6100 and/or in engagement with the electronic circuit system 6900, asdescribed above. Similarly stated, the battery isolation protrusionaperture 6728 of the safety lock 6700 is aligned with the batteryisolation protrusion aperture 6135 of the housing 6100, such that thebattery isolation protrusion 6197 can be disposed within the housing6100 when the cover 6190 is disposed about a portion of the housing6100.

The proximal surface 6730 of the safety lock 6700 includes the safetylock protrusions 6702, the actuator 6724, two opposing pull-tabs 6710,and an engagement portion 6720. As described above, when the safety lock6700 is in a first (locked) position, the safety lock protrusions 6702are disposed in the safety lock protrusion opening 6514 defined by thebase 6510 and in contact with a distal surface 6107 of the housing 6100(see e.g., FIGS. 31 and 68). Accordingly, the safety lock protrusions6702 are configured to prevent the proximal movement of the base 6510and/or delivery of the medicament.

The actuator 6724 of the safety lock 6700 defines the channel 6725 andincludes the protrusion 6726. The actuator 6724 can extend from theproximal surface 6730 of the safety lock 6700 and through a safety lockactuator opening 6524 of the base 6510 (see e.g., FIG. 65). As describedabove, the channel 6725 receives a catch 6553 of the mixing actuatormember 6550 such that the protrusion 6726 can engage the catch 6553. Theprotrusion 6726 extends in a direction substantially transverse to theactuator 6724 and/or substantially parallel to the proximal surface 6730of the safety lock 6700. As described above, the protrusion 6726 canengage the catch 6553 to move the mixing actuator member 6550 in thedistal direction when the safety lock 6700 is moved distally to removethe needle sheath 6820 and/or prepare the medical injector 6000 for use.

The pull-tabs 6710 of the safety lock 6700 include a grip portion 6712and indicia 6713. The grip portion 6712 of the pull-tabs 6710 providesan area for the user to grip and/or remove the safety lock 6700 from therest of the medicament delivery system 6700. The indicia 6713 provideinstruction on how to remove the safety lock 6700. The distal endsurface 6740 also includes indicia 6741 (see e.g., FIG. 61). In someembodiments, for example, indicia can indicate the direction the usershould pull the safety lock 6700 to remove the safety lock 6700. Inother embodiments, indicia can indicate the medical injector 6000 is atrainer (e.g., that the medical injector 6000 is devoid of a needleand/or an active medicament).

The engagement portion 6720 of the safety lock 6700 includes engagementmembers 6721. The engagement members 6721 extend in a proximal directionfrom the proximal surface 6730. The engagement members 6721 have tabs6722 that extend from a surface of the engagement members 6721. The tabs6722 are configured to engage a rib 6825 disposed at a distal endportion 6822 of the needle sheath 6820. In this manner, distal movementof the safety tab 6700 results in distal movement (e.g., removal of) theneedle sheath 6820.

As shown in FIGS. 62 and 63, the needle sheath 68210 includes the distalend portion 6822, a proximal end portion 6821, the rib 6825, and aneedle plug 6827. The needle sheath 6820 also defines a bore 6828. Thebore 6828 is defined by an inner surface 6826 of the needle sheath 6820and is configured to receive the needle 6216 and/or a distal end portionof the 6213 of the medicament container 6200. The needle plug 6827 isdisposed within the bore 6828 at the distal end portion 6822 of theneedle sheath 6820. The needle plug 6827 can be any suitable materialconfigured to engage a proximal end portion 6218 of the needle 6216. Forexample, in some embodiments, the needle plug can be a cork material orany other suitable porous material (e.g., any suitable Porex™ material)to allow for exposure to ethylene oxide during a sterilizationoperation.

The inner surface 6826 further define an annular protrusion 6829disposed at the proximal end portion 6281 of the needle sheath 6820 andis configured to engage an annular notch 6269 defined by the lowerneedle port 6268 of the carrier 6260. The annular protrusion 6829defines a friction fit with the annular notch 6269 of the carrier 6260.In this manner, the needle sheath 6820 can be coupled to the carrier6260 and can protect the user from the needle 6216 and/or can keep theneedle 6216 sterile before the user actuates the medical injector 6000.

The distal end portion 6822 of the needle sheath 6820 is configured tobe inserted into a space defined between the tabs 6722 of the engagementmembers 6721 of the safety lock 6700. The tabs 6722 are angled and/orbent towards the distal direction to allow the distal end portion 6822of the needle sheath 6810 to move between the engagement members 6721 ina distal direction, but not in a proximal direction. Similarly stated,the tabs 6722 include an edge that contacts the rib 6825 of the needlesheath 6820 to prevent the safety lock 6700 from moving in a distaldirection relative to the needle sheath 6820. In this manner, the needlesheath 6820 is removed from the needle 6216 when the safety lock 6700 ismoved in a distal direction with respect to the housing 6100 (see e.g.,FIG. 69).

FIG. 64 shows the mixing actuator member 6550 of the medical injector6000. The mixing actuator member 6550 includes the proximal end portion6551, the distal end portion 6552, and the engagement portion 6558. Thedistal end portion 6552 includes the protrusion 6555 and the catch 6553having an engagement surface 6554. As described above, the catch 6553 isconfigured to engage the protrusion 6726 of the actuator 6724 includedin the safety lock 6700. In this manner, when the safety lock 6700 ismoved in the distal direction, the protrusion 6726 contacts theengagement surface 6554 of the catch 6553 and moves the distal endportion 6552 of the mixing actuator member 6550 in the distal direction.Thus, when the distal end portion 6552 of the mixing actuator member6550 is moved in the distal direction, the protrusion 6555 is moved inthe distal direction to actuate a portion of the electronic circuitsystem 6900, as described above.

The proximal end portion 6551 defines a curved portion 6556 and includesthe pivot protrusions 6557. As described above, the pivot protrusions6557 are disposed within the pivot protrusion apertures 6125 and 6155 ofthe housing 6100, such that the mixing actuator member 6550 can pivotabout the pivot protrusions 6557 when actuated. Furthermore, theproximal end portion 6551 includes a stiffening arm 6564 configured tofacilitate the pivot motion of the mixing actuator member 6550.Expanding further, the stiffening arm 6564 can be configured to transferand/or amplify of a portion of a force exerted on the catch 6553 by thedistal movement of the safety lock 6700 to move the retention portion6558 in a lateral direction (e.g., a direction substantiallyperpendicular to the distal direction), as described in further detailherein. More particularly, the stiffening arm 6564 is configured suchthat the curved portion 6556 of the mixing release member 6550 is spacedapart from the pivot protrusions 6557 by a first distance and theretention portion 6558 is spaced apart from the pivot protrusions 6557by a second distance, less than the first distance. In this manner theforce exerted by the retention portion 6558 during rotation of a portionof the mixing release member 6550 is greater than the force applied tothe distal end portion 6552 of the mixing release member 6550.

The retention portion 6558 extends in a substantially normal directionfrom distal end portion 6552 of the mixing release member 6550.Similarly stated, the retention portion 6558 is substantiallyperpendicular to a portion of the mixing release member 6550 definedbetween the proximal end portion 6551 and the distal end portion 6552.The retention portion 6558 includes a lock surface 6560 and defines aset of notches 6559. As described above, the lock surface 6560 canselectively engage the retention protrusions 6379 of the mixing piston6370 to maintain the mixing piston 6370 in the first (e.g., locked)configuration. The notches 6559 are configured to receive a set of theretention protrusions 6379 when the retention portion 6558 is moved tothe second position (e.g., when the safety lock 6700 is removed from thehousing 6100).

FIGS. 65 and 66 show the base 6510 of the medical injector 6000. Thebase 6510 includes a proximal surface 6511, a distal surface 6523 andbase connection knobs 6518. The base 6510 defines a needle aperture6513, the safety lock protrusion apertures 6514, the battery isolationprotrusion aperture 6521, the safety lock actuator opening 6524, andpull-tab openings 6519. The needle aperture 6513 is configured toreceive the needle 6216 when the medical injector 6000 is actuated. Thesafety lock protrusion apertures 6514 of the base 6510 receive thesafety lock protrusions 6702 of the safety lock 6700 when the safetylock 6700 is coupled to the housing 6100 and/or the base 6510. Thebattery isolation protrusion aperture 6521 of the base 6510 receives thebattery isolation protrusion 6197 of the cover 6190. The safety lockactuator opening 6524 receives the actuator 6724 of the safety lock 6700when the safety lock 6700 is coupled to the housing 6100 and/or the base6510. The pull-tab openings 6519 are configured to receive the pull-tabs6710 of the safety lock 6700 when the safety lock 6700 is coupled to thehousing 6100 and/or the base 6510.

The proximal surface 6511 of the base 6510 includes and/or is coupled tothe release member 6530 and the guide members 6517. The release member6530 includes a proximal end portion 6531 and a distal end portion 6532and defines a channel 6533 between a system lock surface 6534 and thedistal end portion 6532 (see e.g., FIG. 66). The system lock surface6534 is disposed at the proximal end portion 6531, and is configured toengage the first latch protrusion 6315 of the medicament deliverymechanism 6300 when the medical injector 6000 is in the firstconfiguration. Moreover, the system lock surface 6534 engages the firstlatch protrusion 6315 such that the system lock surface 6534 maintainsthe engagement of the first latch protrusion 6315 and the latch membernotch 6120, as described above and shown in FIGS. 29 and 30. Similarlystated, the system lock surface 6534 of the release member 6530 appliesa force to the first latch protrusion 6315 to maintain the first latchprotrusion 6315 within the latch member notch 6120. In this manner,distal movement of the first movable member 6301 and/or the medicamentdelivery mechanism 6300 is limited. When the base 6510 is moved in aproximal direction, as described in further detail herein, the systemlock surface 6534 moves in the proximal direction to disengage from thefirst latch protrusion 6315. In response, the first latch protrusion6315 moves within the channel 6533 of the release member 6530 in adistal direction, as described in further detail herein. Similarlystated, upon actuation of the medicament injector 6000, a portion of themedicament delivery mechanism 6300 moves within the release member 6530.

The guide members 6517 of the base 6510 are configured to engage and/orslide within the base rail grooves 6114 of the housing 6100, asdescribed above. As described above, the base connection knobs 6518 areconfigured to engage the base retention recesses 6134A, 6134B in a waythat allows proximal movement of the base 6510 but limits distalmovement of the base 6510 relative to the housing 6100.

As shown in FIG. 67, the medical injector 6000 is first enabled bymoving the medicament delivery device 6000 from the first configurationto the second configuration by moving the cover 6190 from a firstposition to a second position. The cover 6190 is moved from the firstposition to the second position by moving it with respect to the housing6100 in the direction shown by the arrow PP in FIG. 67. When the cover6190 is moved with respect to the housing 6100 in the direction PP, thebattery isolation protrusion 6197 is removed from the area between thebattery clip 6910 and the second surface 6966 of the battery assembly6962. In this manner, the battery assembly 6962 is operatively coupledto the electronic circuit system 6900 when the cover 6190 is removed,thereby providing power to the electronic circuit system 6900. Similarlystated, this arrangement allows the electronic circuit system 6900 to beactuated when the cover 6190 is removed.

When power is provided, as described above, the electronic circuitsystem 6900 can output one or more predetermined electronic outputs. Forexample, in some embodiments, the electronic circuit system 6900 canoutput an electronic signal associated with recorded speech to theaudible output device 6956. Such an electronic signal can be, forexample, associated with a .WAV file that contains a recordedinstruction, instructing the user in the operation of the medicalinjector 6000. Such an instruction can state, for example, “Remove thesafety tab near the base of the auto-injector.” The electronic circuitsystem 6900 can simultaneously output an electronic signal to one and/orboth of the LEDs 6958A, 6958B thereby causing one and/or both of theLEDs 6958A, 6958B to flash a particular color. In this manner, theelectronic circuit system 6900 can provide both audible and visualinstructions to assist the user in the initial operation of the medicalinjector 6000.

In other embodiments, the electronic circuit system 6900 can output anelectronic output associated with a description and/or status of themedical injector 6000 and/or the medicament contained therein. Forexample, in some embodiments, the electronic circuit system 6900 canoutput an audible message indicating the symptoms for which themedicament should be administered, the expiration date of themedicament, the dosage of the medicament or the like.

In yet other embodiments, the electronic circuit system 6900 can outputa wireless signal to a cell phone, computer, compliance tracking device,emergency dispatch system or the like. For example, in some embodiments,the electronic circuit system 6900 can output an wireless signal to acompliance tracking device, which receives the signal and monitors theactivity (e.g., the arming of, the use of or the like) of the medicalinjector 6000.

In some embodiments, the medical injector 6000 can be repeatedly movedbetween the first configuration and the second configuration when thecover 6190 is moved repeatedly between the first position and the secondposition, respectively. Said another way, in some embodiments, the cover6190 can be removed and replaced about the housing 6100 any number oftimes. When the cover 6190 is moved from the second position to thefirst position, the battery isolation protrusion 6197 is insertedbetween the battery clip 6910 and the second surface 6966 of the batteryassembly 6962, deactivating the electronic circuit system 6900. When thecover is moved from the first position to the second position a secondtime, the electronic circuit system 6900 is once again activated. Inother embodiments, the cover 6190 is configured to be removed from thehousing only one time and the electronic circuit system 6900 istherefore configured output a single electronic output in responsethereto, which, for example, can warn the user about the compromisedsterility of the needle 6216.

After the cover 6190 is removed from the housing 6100, the medicalinjector 6000 is in the second configuration. As shown in FIG. 68, themedical injector 6000 is in a locked or pre-actuated position while inthe second configuration. Thus, the safety lock protrusions 6702 of thesafety lock 6700 are disposed within the safety lock protrusion openings6514 of the base, and in contact with the distal surface 6107 of thehousing 6100. With the safety lock 6700 coupled to the housing 6100and/or the base 6510, the mixing actuator member 6550 is in a firstposition and/or configuration. As described above, the lock surface 6560of the retention portion 6558 included in the mixing actuator member6550 exerts a reaction force on the retention protrusions 6379 of themixing piston 6370 (e.g., the second movable member 6370). In thismanner, the mixing spring 6390 is maintained in the compressedconfiguration and the mixing piston 6370 remains in a first position,relative to the piston portion 6330 of the first movable member 6301.Therefore, the medicament container assembly 6200 remains in a firstconfiguration (e.g., a pre-mixed configuration). In this configuration,the diluent volume 6236 is separated and/or fluidically isolated fromthe dry medicament volume 6237. Similarly, the dry medicament volume6237 is substantially separated from the void volume 6238. The proximalend portion 6217 of the needle 6216 is disposed within the void volume6238, and is therefore substantially isolated from the medicament.Furthermore, the distal end portion 6218 of the needle 6216 is disposedwithin the needle sheath 6820 such that a user is protected from a sharppoint defined by the distal end of the needle 6216, and the sterility ofthe needle 6216 is maintained.

The medical injector 6000 can be moved from the second configuration(FIGS. 67 and 68) to a third configuration (FIGS. 69-72) by moving thesafety lock 6700 from a first position to a second position. The safetylock 6700 is moved from a first position to a second position by movingthe safety lock 6700 with respect to the housing 6100 in the directionshown by the arrow QQ in FIG. 69. When the safety lock 6700 is movedfrom the first position to the second position, the safety lockprotrusions 6702 are no longer in contact with the distal surface 6107of the housing 6100, and are removed from safety lock protrusionopenings 6514 of the base, thereby enabling the medicament deliverymechanism 6300. Additionally, when the safety lock 6700 is removed fromand/or moved relative to the housing 6100, the actuator 6724 of thesafety lock 6700 also moves in the direction QQ to actuate the mixingactuator member 6550. More specifically, as described above (e.g., withrespect to FIGS. 31, 62 and 64) the protrusion 6726 of the actuator 6724is in contact with the engagement surface 6554 of the catch 6553;therefore, when the actuator 6724 is moved in the direction QQ, theprotrusion 6726 exerts a first force F₁ on the engagement surface 6554of the catch 6553 to move at least the distal end portion 6552 of themixing actuator member 6550 in the direction QQ.

With the distal end portion 6552 of the mixing actuator member 6550moved in the direction QQ, the protrusion 6555 of the mixing actuatormember 6550 moves with relation to the first actuation portion 6926 ofthe electronic circuit system 6900, thereby moving the first switch 6972from a first state (e.g., a state of electrical continuity) to a secondstate (e.g., a state of electrical discontinuity). When the protrusion6555 moves the first switch 6972 of the electronic circuit system 6900to the second state, the electronic circuit system 6900 can output oneor more predetermined electronic outputs. For example, the protrusion6555 can irreversibly move the first switch 6972 to the second statesuch that a processor (not shown) can output an electronic signalassociated with recorded speech to the audible output device 6956. Suchan electronic signal can be, for example, associated with a recordedmessage notifying the user of the status of the medical injector 6000.Such a status message can state, for example, “The needle guard has beenremoved and the mixing operation is no ongoing.” The electronic circuitsystem 6900 can also simultaneously output an electronic signal to oneand/or both of the LEDs 6958A, 6958B, thereby causing one and/or both ofthe LEDs 6958A, 6958B to start flashing, stop flashing, change color, orthe like.

In some embodiments, the first actuation portion 6926 and the protrusion6555 can be configured such that the protrusion 6555 must move apredetermined distance before the protrusion 6555 engages the boundary6929 of the opening 6928. For example, in some embodiments, theprotrusion 6555 must move approximately 0.62 inches before theprotrusion 6555 engages the boundary 6929 of the opening 6928. In thismanner, the safety lock 6700 can be moved slightly without irreversiblymoving the first switch 6972 of the electronic circuit system 6900 tothe second state. Accordingly, this arrangement will permit the user toinadvertently and/or accidentally move the safety lock 6700 withoutactuating the electronic circuit system 6900.

In some embodiments, the electronic circuit system 6900 can beconfigured to output the status message for a predetermined time period,such as, for example, five seconds. After the predetermined time periodhas elapsed, the electronic circuit system 6900 can output an audiblemessage further instructing the user in the operation of the medicalinjector 6000. Such an instruction can state, for example, “The mixingoperation is now complete. Place the base of the auto-injector againstthe patient's thigh. To complete the injection, press the base firmlyagainst the patient's thigh.” In some embodiments, the electroniccircuit system 6900 can simultaneously output an electronic signal toone and/or both of the LEDs 6958A, 6958B, thereby causing one and/orboth of the LEDs 6958A, 6958B to flash a particular color. In thismanner, the electronic circuit system 6900 can provide both audibleand/or visual instructions to assist the user in the placement andactuation of the medical injector 6000. In some embodiments, theelectronic circuit system 6900 can be configured to repeat theinstructions after a predetermined time period has elapsed.

In other embodiments, the output associated with the completion of themixing operation (or any other operations described herein) need not bebased on an elapsed time. For example, as described above, some suchembodiments, the electronic circuit system 6900 can produce an outputwhen the mixing event has ended based at least in part upon the locationof a plunger within the medicament container.

As described above, in other embodiments, the medical injector 6000 canhave a network interface device (not shown) configured to operativelyconnect the electronic circuit system 6900 to a remote device (notshown) and/or a communications network (not shown). In this manner, theelectronic circuit system 6900 can send a wireless signal notifying aremote device that the safety lock 6700 of the medical injector 6000 hasbeen removed and that the medical injector 6000 has been armed. In otherembodiments, the electronic circuit system 6900 can send a wirelesssignal (e.g., a wireless 911 call) notifying an emergency responder thatthe medical injector 6000 has been armed.

The actuation of the mixing actuator member 6550 also actuates themixing piston 6370. As described above, the protrusion 6726 of theactuator 6724 exerts the first force F₁ on the engagement surface 6554of the catch 6553 such that at least a portion of the first force F₁moves the mixing actuator member 6550 in the direction QQ. The mixingactuator guide 6119, the lower retention protrusions 6138, the upperretention protrusion 6139, and the upper mixing actuator plate 6123 ofthe first housing member 6110 (see e.g., FIG. 25) engage portions of themixing actuator member 6550 to facilitate a desired motion, bending,flexing, or reconfiguration of at least a portion of the mixing actuatormember 6550. This arrangement allows at least a portion of the mixingactuator member 6550 to pivot about the pivot protrusions 6557 disposedwithin the pivot protrusion apertures 6125 and 6155 of the housing, asshown by the arrow QQ′ in FIG. 69. Furthermore, the upper retentionprotrusion 6139 defines a curved shape configured to engage the curvedportion 6556 of the mixing actuator member 6550. Thus, the housing 6100and/or the upper retention protrusion 6139 define a channel and/or trackwithin which and/or against which a portion of the mixing actuatormember 6550 can move, flex, and/or bend in a non-linear manner.

The arrangement of the portion of the mixing actuator member 6550 thatdefines the curved path 6556, the stiffening arm 6564, and the uppermixing actuator plate 6123 facilitate a transferring of a portion of thefirst force F₁ in the direction QQ into a second force F₂ in thedirection RR, as shown in FIG. 70. Similarly stated, mixing actuatormember 6550 is configured such that at least a portion of the firstforce F₁ exerted on the catch 6553 by the protrusion 6726 of the safetylock 6700 moves the retention portion 6558 in the direction RR. In someembodiments, the position of the pivot protrusions 6557, relative to therest of the mixing actuator member 6550 and the stiffening arm 6564 aresuch that the transferring of the first force F₁ includes amplifying thefirst force F₁. More specifically, the length of the stiffening arm 6564defines a first moment arm and the distance defined between the pivotprotrusions 6557 and the retention portion 6558 defines a second momentarm, substantially smaller than the first moment arm. In this manner, atorque produced from the rotation about the pivot protrusions 6557results in the amplification of the first force F₁ by the ratio of thelength of the first moment arm to the length of the second moment arm.

By way of example, in some embodiments, the length of the first momentarm (e.g., the length of the stiffening arm 6564) can be four times aslong as the length of the second moment arm (e.g., the length definedbetween the pivot protrusions 6557 and the retention portion 6558).Therefore, as a first force is applied in the direction QQ, the pivotmotion of the mixing actuator member 6550 about the pivot protrusions6557 results in a second force in the direction RR that is four timesgreater than the first force. Furthermore, this arrangement reduces thelateral translation of the retention portion 6558 (e.g., the translationof the portion of the mixing actuator member 6550 in the direction QQ isgreater than the translation of the retention portion 6558 in thedirection RR. In this manner, in some embodiments, the retention portion6558 can be configured move in the direction RR with the second forceF₂, resulting in a relatively fast movement of the retention portion6558.

As shown in FIG. 70, the lateral motion of the retention portion 6558disengages the lock surface 6560 from the retention protrusions 6379 ofthe mixing piston 6370. More specifically, with reference to FIG. 70,the retention portion 6558 is moved within the retention portion channel6306 in the direction RR such that the retention protrusions 6379disposed to the left of the alignment protrusion 6305 are at leastmomentarily positioned in alignment with the notches 6559 and theretention protrusions 6379 disposed to the right of the alignmentprotrusions 6305 are at least momentarily positioned adjacent to an endof the retention portion 6558. In this manner, the lock surface 6560 nolonger exerts the reaction force on the distal surface of the retentionprotrusions 6379 to maintain the mixing spring 6390 in the firstconfiguration (e.g., the compressed configuration). Therefore, when theretention portion 6558 moves laterally, the mixing spring 6390 expandsto the second configuration and exerts a force F₃ to move the mixingpiston 6370 in the distal direction, as indicated by arrow SS in FIG.71.

With the mixing spring 6390 in the second configuration (e.g., theexpanded configuration), much of the proximal end portion 6371 of themixing piston 6370 is disposed outside of the opening 6333 defined bythe piston portion 6330 of the first movable member 6301. Similarlystated, the proximal end portion 6371 of the mixing piston 6370 isdisposed in a distal position relative to the distal end 6334 of thepiston portion 6330 of the first movable member 6301. As describedabove, with the mixing piston 6370 outside of the piston portion 6330,the tabs 6378 (i.e., retention members or portions) included in thewalls 6376 of the mixing piston 6370 expand to an undeformed position,as shown in FIG. 71. In this manner, the tabs 6378 can engage the distalend 6334 of the piston portion 6330 after the first movable member 6301is moved to a second position, as described in further detail herein.More particularly, as shown in FIG. 73, the tabs 6378 (i.e., retentionmembers or portions) are configured to engage the distal end 6334 of thepiston portion 6330 to limit movement of the mixing piston 6370 relativeto the first movable member 6301 during the needle insertion and/orinjection operations.

The distal movement of the mixing piston 6370 begins the mixing event,as shown in FIGS. 71 and 72. More specifically, the distal surface 6375of the mixing piston 6370 engages the proximal surface 6222 of the firstelastomeric member 6221 and transfers a portion of the force F₃ exertedby the mixing spring 6390 to move at least the first elastomeric member6221 in the distal direction. The arrangement of the elastomeric memberswithin the medicament container 6210 is such that the portion of theforce F₃ exerted on the first elastomeric member 6221 moves the firstelastomeric member 6221, the second elastomeric member 6225, and thethird elastomeric member 6229 in the distal direction. Expandingfurther, the constituents in the diluent volume 6236, the dry medicamentvolume 6237, and the void volume 6238 are such that when the force F₃ isapplied, the volume of the void volume 6238 is reduced. For example, insome embodiments, at a portion of a gas within the void volume 6238 isevacuated from the void volume 6238. In some embodiments, the gas canexit the void volume 6238 via the distal end portion 6213 of themedicament container 6210. In some embodiments, the gas can exit thevoid volume 6238 via the needle 6216. In this manner, the thirdelastomeric member 6229 is moved in the distal direction to contact adistal shoulder 6239 of the medicament container 6210. As shown in FIG.72, the distal shoulder 6239 engages the distal surface 6231 of thethird elastomeric member 6229 to stop the distal movement of the thirdelastomeric member 6229 such that the proximal end portion 6217 of theneedle 6216 does not substantially puncture through the thickness T ofthe third elastomeric member 6229.

Concurrently, the application of the force F₃ results in the distalmovement of the first elastomeric member 6221 and the second elastomericmember 6225. Therefore, as shown in FIG. 71, the diluent volume 6236 andthe dry medicament volume 6237 are placed in fluid communication via thebypass 6220 such that the diluent within the diluent volume 6236 istransferred to the dry medicament volume 6237. In this manner, thediluent can mix with the lyophilized medicament disposed within the drymedicament volume 6237 to reconstitute the medicament for injection.

After the mixing event, the medical injector 6000 can be moved from thethird configuration (FIG. 69-72) to a fourth configuration (FIGS. 73 and74) by moving the base 6510 from a first position to a second position.Similarly stated, the medical injector 6000 can be actuated by thesystem actuator assembly 6500 by moving the base 6510 proximallyrelative to the housing 6100. The base 6510 is moved from its firstposition to its second position by placing the medical injector 6000against the body of the patient and moving the base 6510 with respect tothe housing 6100 in the direction shown by the arrow TT in FIG. 73.

When the base 6510 is moved from the first position to the secondposition, the system actuator assembly 6500 actuates the medicamentdelivery mechanism 6300, thereby placing the medical injector 6000 inits fourth configuration (i.e., the needle insertion configuration), asshown in FIGS. 73 and 74. More specifically, the proximal movement ofthe system actuator assembly 6500 and/or the base 6510 moves the releasemember 6530 in the proximal direction within the housing 6100, therebyallowing the first latch protrusion 6315 to be disengaged from thesystem lock surface 6534 of the proximal end portion 6533 of the releasemember 6530. Similarly stated, when the system actuator assembly 6500 ismoved in the proximal direction, the system lock surface 6534 disengagesthe first latch protrusion 6315. Moreover, when the system lock surface6534 moves in the proximal direction relative to the first latchprotrusion 6315, the first latch protrusion 6315 moves and/or deformssubstantially laterally into the channel 6533 defined by the releasemember 6530.

When the first latch protrusion 6315 is disposed within the channel6533, the force applied by the system lock surface 6534 of the base 6510to maintain the first latch protrusion 6315 within the latch membernotch 6120 is removed and the first latch protrusion 6315 is allowed todisengage the latch member notch 6120. Therefore, the engagement surface6109 of the latch member notch 6120 no longer applies the reaction forceto the first latch protrusion 6315; thus, the spring 6420 is allowed toexpand. As described above, the proximal end portion 6421 of the spring6420 is in contact with the upper spring plate 6122 of the first housingmember 6110 such that the spring 6420 expands in the direction shown bethe arrow UU in FIG. 73. With the distal end portion 6422 of the spring6420 in contact with the spring seat 6615 of the transfer member 6600, aforce F₄ produced by the expansion of the spring 6420 is applied to thetransfer member 6600, which moves the transfer member 6600 in thedirection shown by the arrow UU. In this manner, the latch 6620 of thetransfer member 6600 transfers at least a portion of the force F₄ to thesecond latch protrusion 6317 of the latch portion 6310 of the firstmovable member 6301 such that the portion of the force moves themedicament delivery mechanism 6300 in the distal direction, shown by thearrow UU in FIG. 73. Thus, the first movable member 6301 and thetransfer member 6600 move together distally within the housing 6100.

When the medicament delivery mechanism 6300 is moving distally, thepiston portion 6330 of the first movable member 6301 applies a portionof the force F₄ to the medicament container 6210. More specifically, thedistal end 6334 of the piston portion 6330 engages the latches 6378 ofthe mixing portion 6370. With the latches 6378 in the extended position(described above), the piston portion 6330 can transfer a portion of theforce F₄ to the mixing piston 6370 such that the mixing piston 6370further transfers a portion of the force F₄ to the first elastomericmember 6221. With the first elastomeric member 6221, the secondelastomeric member 6225, and the third elastomeric member 6229 in theirrespective second positions, the portion of the force F₄ transferred tothe first elastomeric member 6221 moves the medicament containerassembly 6200 within the housing 6100 to a third configuration.Expanding further, the mixed medicament contained within the mixedvolume 6237 is such that the medicament is a substantiallyincompressible liquid; thus the portion of the force F₄ acts to move themedicament container assembly 6200 in the distal direction rather thanmoving the first elastomeric member 6221, the second elastomeric member6225, and/or the third elastomeric member 6229 within the medicamentcontainer 6210.

As described above, the portion of the force F₄ exerted by the pistonportion 6330 and/or the mixing piston 6370 moves the medicamentcontainer assembly 6200 in the distal direction. As shown in FIG. 72,when the medicament container assembly 6200 is in the first position(e.g., prior to being moved by the portion of the force F₄), anengagement surface 6275 of the needle insertion tabs 6271 included inthe carrier 6260 are in contact with the carrier engagement surface 6131included in the first housing member 6110. In this configuration, theflanged end 6214 of the medicament container 6210 is disposed on aproximal surface 6273 of the container shoulder 6272. Therefore, whenthe portion of the force F₄ is exerted on the first elastomeric member6221, the force is transferred through the medicament container 6210 tothe proximal surface 6273 of the container shoulder 6272. Thus, aportion of the force F₄ is exerted on the container shoulder 6272 tomove the carrier 6260 in the distal direction (FIGS. 73 and 74).

As described above, when the carrier 6260 and/or medicament containerassembly 6200 moves to the second position, the protrusion 6279 of theelectronic engagement portion 6278 actuates the electronic circuit 6900to trigger a predetermined output or sequence of outputs. When theprotrusion 6279 is moved in the distal direction relative to the opening6945, the second switch 6973 is moved from a first state (e.g., a stateof electrical continuity) to a second state (e.g., a state of electricaldiscontinuity). When the protrusion 6279 moves the second switch 6973 ofthe electronic circuit system 6900 to the second state, the electroniccircuit system 6900 can output one or more predetermined electronicoutputs.

For example, in some embodiments, the electronic circuit system 6900 canoutput an electronic signal associated with recorded speech to theaudible output device 6956. Such an electronic signal can be, forexample, associated with an audible countdown timer, instructing theuser on the duration of the injection procedure. Said another way, if ittakes, for example, ten seconds to complete an injection, an audiblecountdown timer can count from ten to zero ensuring that the usermaintains the medical injector 6000 in place for the full ten seconds.In other embodiments, the electronic signal can be, for example,associated with a recorded message notifying the user that the injectionis complete, instructing the user on post-injection disposal and safetyprocedures, instructing the user on post-injection medical treatment orthe like. Such a status message can state, for example, “The injectionis now complete. Please seek further medical attention from a doctor.”The electronic circuit system 6900 can also simultaneously output anelectronic signal to one and/or both LEDs 6958A, 6958B, thereby causingone and/or both LEDs 6958A, 6958B to stop flashing, change color or thelike, to provide a visual indication that the injection is complete. Inother embodiments, the electronic circuit system 6900 can send awireless signal notifying a remote device that the injection iscomplete. In this manner, a patient's compliance can be monitored.

As shown in FIG. 74, the carrier 6260 moves to a second position withinthe housing 6100 during the needle insertion operation. With the carrier6260 in the second position, a distal surface 6296 of the carrier 6260contacts the housing 6100, thereby limiting the distal movement of thecarrier 6260. Furthermore, with the carrier 6260 in the second position,the carrier engagement surface 6131 is disposed within a recesses 6277defined by the needle insertion tabs 6271. With the carrier engagementsurface 6131 disposed within the recesses 6277, the needle insertiontabs 6271 return to an undeformed configuration, as described above. Inthe undeformed configuration, the needle insertion tabs 6271 extend suchthat the flanged end 6214 is no longer in contact with the containershoulders 6272. Thus, the portion of the force F₄ applied to the firstelastomeric member 6221 moves the medicament container 6210 in thedistal direction, relative to the carrier 6260.

When the medicament container 6210 moves in the distal directionrelative to the carrier 6260, the medicament container 6210 movesdistally about the needle hub 6264 such that the upper portion 6267 ofthe needle hub 6264 is disposed within the distal counter bore 6234 ofthe third elastomeric member 6229. In this manner, the proximal endportion 6217 of the needle 6216 punctures through the thickness T of thethird elastomeric member 6229 and the medical injector 6000 can beplaced in a fifth configuration (i.e., the medicament deliveryconfiguration).

The medical injector 6000 is placed in the fifth configuration when theproximal end portion 6217 of the needle 6216 is disposed within themixing volume 6237 and a portion of the force F₄ is exerted on the firstelastomeric member 6221, as shown in FIG. 75. With the medicamentcontainer 6210 and the carrier 6260 in the second position within thehousing 6100 (e.g., moved in the distal direction), the portion of theforce F₄ exerted on the first elastomeric member 6221 can move the firstelastomeric member 6221 and the second elastomeric member 6225 from thesecond position to a third position within the medicament container6210. More specifically, the mixing piston 6370 and/or piston portion6330 exerts the portion of the force F₄ on the proximal surface 6222 ofthe first elastomeric member 6221 as indicated by arrow VV in FIG. 75 tomove the first elastomeric member 6221 and the second elastomeric member6225 to the third position. In this manner, the medicament disposedwithin the dry medicament volume 6237 (e.g., the volume defined betweenthe distal surface 6227 of the second elastomeric member 6225 and theproximal surface 6230 of the third elastomeric member 6229) istransferred to the needle 6216 and injected into the body of thepatient.

When the spring 6420 fully expands, the medicament delivery mechanism6300 moves in the distal direction to fully inject the medicament withinthe medicament container 6210. Additionally, when the spring 6420 isfully expanded and/or when the medicament delivery mechanism 6300 hasmoved a desired distance within the housing 6100, the guide protrusion6624 of the transfer member 6600 engages the lower notch 6121 of thehousing 6100 (see e.g., FIG. 25) to place the transfer member 6600 inthe second configuration. Expanding further, the guide protrusion 6624is aligned with the lower notch 6121 such that the guide protrusion 6624moves through the lower notch 6121 to move the transfer member 6600 tothe second position. As described above, when the guide protrusion 6624moves through the lower notch 6121, the bendable portion 6622 of thetransfer member 6600 bends (e.g., returns to an undeformed position),thereby placing the transfer member 6600 in its second configuration, asshown in FIG. 76. In this manner, the latch 6620 can be disengaged fromthe second latch protrusion 6317. Similarly stated, the spring 6420and/or the transfer member 6600 are decoupled from the medicamentdelivery mechanism 6300. With the latch arm 6618 disengaged from thelatch portion 6310, the medical injector 6000 can be moved from thefifth configuration to the sixth configuration (i.e., the retractionconfiguration).

With the transfer member 6600 disengaged from the medicament deliverymechanism 6300, the medicament container assembly 6200 and themedicament delivery mechanism 6300 are configured to move within thehousing 6100 in the direction shown by the arrow WW in FIG. 76 inresponse to a force exerted by the retraction member 6440 (e.g., theretraction spring). Similarly stated, with the medicament deliverymechanism 6300 disengaged from the transfer member 6600 and/or thespring 6420, the force F₄ is no longer applied to the medicamentdelivery mechanism 6300. In this manner, the retraction member 6440 isconfigured to expand in the direction of the arrow WW to apply aretraction force to the medicament container assembly 6200. Similarlystated, with the portion of the force F₄ configured to compress theretraction spring 6440 removed, the retraction member 6440 expands,returning to its uncompressed (i.e., non-deformed) configuration.

During the retraction operation, the retraction spring 6440 exerts aretraction force on the retraction spring surface 6284 to move thecarrier 6260 in the direction WW. The proximal movement of the carrier6260 (e.g., the retraction) places the carrier engagement surface 6131in contact with an angled surface 6276 of the needle insertion tabs6271. In this manner, the angled surface 6276 is configured to sliderelative to the carrier engagement surface 6131 as the carrier 6260moves in the proximal direction in response to the retraction forceexerted by the retraction member 6440. As the carrier 6260 continues tomove in the proximal direction the engagement surface 6275 is placedinto contact with the carrier engagement surface 6131 such that theneedle insertion tabs 6271 are placed in the deformed configuration(e.g., non-extended configuration). Therefore, the container shoulders6272 move closer together to maintain the flanged end 6214 of themedicament container 6210 between a distal surface 6274 of the containershoulder 6272 and a proximal surface 6297 of the container-mountingportion 6263. In this manner, the medicament container 6210 is coupledto the carrier 6260 and a portion of the retraction force moves themedicament container 6210 in the proximal direction. This motion,removes the needle 6216 from the target location of the patient andretracts the needle into the housing 6100, as shown in FIG. 76.

While specific components are discussed above with respect to themedical injector 6000, in other embodiments, any of the medicamentdelivery devices and/or medical injectors described herein can includecomponents that are modified and/or removed from those shown anddescribed above with respect to the medical injector 6000. Similarlystated, in other embodiments, a medical injector can include different,more or fewer components than are shown in the medical injector 6000without substantially changing the mixing and/or medicament injectionevent. For example, FIGS. 77-105 show a medical injector 7000, accordingto an embodiment.

FIG. 77 is a perspective view, FIG. 78 is a side view, and FIG. 79 is across-sectional view taken along line X1-X1, of an injector 7000 in afirst configuration. The injector 7000 includes a housing 7100 includinga body 7105 and a proximal cap 7103. The injector 7000 includes a case7190 and a safety lock 7700 (shown in FIG. 80). The case 7190 and thesafety lock 7700 can be configured to prevent damage to the injector7000, to prevent the accidental actuation of the injector, to identifythe contents of the injector 7000, and/or to initiate an electronicoutput during operation of the injector, as described in further detailherein.

FIG. 80 is a rear perspective view, and FIG. 81 is a rear view, of theinjector 7000 in a second configuration (e.g., with the case 7190removed). FIG. 82 is a front view of the injector 7000, shown withoutthe body 7105 to more clearly show the components disposed within thehousing 7100, as described below. The injector 7000 includes a systemactuator assembly 7500 having components (including the base 7510)configured to initiate an injection and/or mixing of a medicamentcontained within the injector 7000. The injector 7000 includes anelectronic assembly 7900 (as shown in FIGS. 96-99) configured to provideat least one electronic output associated with injection and/or mixing.The housing 7100 can include openings configured to provide anindication of a status to a user of the injector 7000 and/or to interactwith the internal components of injector 7000, specifically, the housing7100 includes a status window 7130 and a catch 7136. The injector 7000includes a medicament container assembly 7200 (as shown in FIGS. 82-86),a medicament delivery mechanism 7300 (as shown in FIGS. 86-93), atransfer member 7600 (as shown in FIGS. 93 and 94), and a retractionmember 7440 (as shown in FIG. 95).

FIGS. 83-85 show components of the medicament container assembly 7200 ofthe injector 7000. The medicament container assembly 7200 includescomponents configured to store a medicament, segregate stored medicamentcomponents, and mix medicament components. The medicament containerassembly 7200 includes a carrier 7260 and a medicament container 7210.The carrier 7260 includes a retraction member protrusion 7284, acontainer mounting portion 7263, a needle hub 7264, and a latch 7294.The retraction member protrusion 7284 receives a proximal end portion ofthe retraction member 7440 (as shown in FIG. 90), such that theretraction member 7440 can move the carrier 7260 in the proximaldirection. The container mounting portion 7293 receives a distal endportion 7213 of the medicament container 7210. The needle hub 7264 canreceive, hold, and/or contain at least a portion of a needle 7216 andcan be configured to receive a needle guard 7800. A plug (similar to theplug 6827 shown and described above) can be disposed within the needleguard 7800. In some embodiments, the needle 7216 penetrates the plugduring injection. In other embodiments, the needle guard 7800 can becoupled to the safety lock 7700 such that the needle guard 7800 isremoved from the needle 7216 when the safety lock 7700 is removed fromthe housing 7100. The latch 7294 presses against and/or is disposedwithin the catch 7136 of the housing (shown in FIG. 81) to preventand/or limit proximal movement of the medicament container 7210 when theinjector 7000 is in the first configuration, the second configuration, athird configuration (e.g., the mixing configuration), and a fourthconfiguration (e.g., the needle insertion configuration).

The medicament container 7210 includes a first elastomeric member 7221,a second elastomeric member 7225, and a third elastomeric member 7229.The first elastomeric member 7221, the second elastomeric member 7225,and the third elastomeric member 7229 are placed within the medicamentcontainer 7210 during the fill process, as described below, to define adiluents volume 7236, a mixing volume 7237, and a void volume 7238. Saidanother way, the diluents volume 7236 is the volume within themedicament container 7210 between a distal surface of first elastomericmember 7221 and a proximal surface of second elastomeric member 7225,the mixing volume 7237 is the volume within medicament container 7210between a distal surface of second elastomeric member 7225 and aproximal surface of third elastomeric member 7229, and the void volume7238 is the volume within the medicament container 7210 distal to thedistal surface of the third elastomeric member 7229.

The medicament container 7210 includes a bypass 7220, a proximal endportion 7212, and a distal end portion 7213. The bypass 7220 can be asingular channel bypass or can define multiple channels. Although thebypass 7220 is shown as an external bypass, alternatively, in someembodiments, the bypass 7220 can be internal (e.g., defined by aninternal structure of the container) and/or defined by the secondelastomeric member 7225. Said another way, in some embodiments thebypass can be configured such that the outer diameter of the medicamentcontainer 7210 is substantially constant. As shown in FIGS. 83 and 85,the diluents volume 7236, the mixing volume 7237, and the void volume7238 are defined by the relative positions of the first elastomericmember 7221, the second elastomeric member 7225, and the thirdelastomeric member 7229. The diluents volume 7236 can contain medicamentdiluents, such as, for example, water; the mixing volume 7237 cancontain a lyophilized medicament. The second elastomeric member 7225 anda sidewall of the medicament container 7210 can collectively produce afluid tight seal between the diluents volume 7236 and the mixing volume7237 to prevent premature mixing of the diluents and the lyophilizedmedicament.

The proximal end 7212 of the medicament container 7210 receives a secondmovable member 7370 (i.e., a mixing piston, as shown in FIG. 86). Inuse, when the system actuator assembly 7500 is actuated, the secondmovable member 7370 moves in the distal direction within the proximalend portion 7212 of the medicament container 7210, which moves the firstelastomeric member 7221 in the in the distal direction (see e.g., FIGS.101 and 102). The distal movement of the first elastomeric member 7221causes the diluents in diluents volume 7236 to move the secondelastomeric member 7225 in the distal direction (see e.g., FIG. 101). Insome embodiments, the movement can be substantially simultaneous (e.g.when the diluent is an incompressible fluid). As shown in FIG. 101,distal movement of the second elastomeric member 7225 can cause thesubstantially dry, solid and/or lyophilized medicament in mixing volume7237 to move the third elastomeric member 7229 in the distal direction.When the first elastomeric member 7221, the second elastomeric member7225, and the third elastomeric member 7229, move in the in the distaldirection, the volume and location of the diluents volume 7236, themixing volume 7237, and the void volume 7238, can change. By way ofexample, when the first elastomeric member 7221, second elastomericmember 7225, and third elastomeric member 7229, move in the in thedistal direction, the volume of the diluents volume 7236 and the mixingvolume 7237 can initially remain substantially unchanged while thevolume of the void volume 7238 can be reduced (see e.g., FIG. 101). Whenthe proximal end of the second elastomeric member 7225 moves in thedistal direction past the proximal end portion of the bypass 7220, thediluents volume 7236 can be placed in fluid communication with mixingvolume 7237. Thus, continued distal movement of first elastomeric member7221 can cause the diluents in diluents volume 7236 to flow into mixingvolume 7237 via the bypass 7220 and can cause the diluents and thesubstantially dry, solid and/or lyophilized medicament to mix in themixing volume 7238, forming a reconstituted medicament within the mixingvolume 7237. In some embodiments, when the diluents volume 7236 and themixing volume 7237 are in fluid communication, the movement of thesecond elastomeric member 7225 can slow or stop.

As shown and described below with respect to FIG. 102, when the diluentsflows into the mixing volume 7237, the volume of the diluents volume7236 can be reduced, the volume of the mixing volume 7238 can increase,and the volume of the void volume 7238 can be reduced. In someembodiments, when the volume of the void volume 7238 is decreased, airwithin the void volume 7238 can escape via the needle 7216. The firstelastomeric member 7221 can contact the second elastomeric member 7225and can continue to move in the distal direction as shown in FIG. 102.The distal movement of the first elastomeric member 7221 and the secondelastomeric members 7225 can cause the medicament to move the thirdelastomeric member 7229 in the distal direction, thereby forcing airwithin the void volume 7238 to escape from medicament container 7210.

In some embodiments, the distal movement of third elastomeric member7229 during the mixing operation can cause the third elastomeric member7229 to contact needle 7216. Furthermore, in some embodiments, thedistal movement of third elastomeric member 7229 can cause the thirdelastomeric member 7229 to contact needle 7216 such that the needle 7216penetrates through only a portion of the third elastomeric member 7229,thus preventing fluid communication between the needle 7216 and themixing volume 7237 (and the medicament therein) until injection. In thismanner, the needle 7216 remains fluidly isolated from the mixing volume7237 until after the needle insertion event as described below. Aftercompletion of the mixing event and/or the insertion event, continuedmovement of the third elastomeric member 7229 within the medicamentcontainer 7210 can cause the needle 7216 to substantially penetratethrough the third elastomeric member 7229 and allow the needle 7216 tobe placed in fluid communication with mixing volume 7237 and themedicament.

As shown in FIG. 85, in some embodiments, a distal surface of the thirdelastomeric member 7229 includes a counter bore to allow the thirdelastomeric member 7229 to move about needle hub 7264 during the mixingoperation, as shown in FIGS. 101-103. This configuration effectivelyreduces the thickness of the portion of the third elastomeric member7229 through which the needle 7216 penetrates. In some embodiments, thedistal surface and a proximal surface of the third elastomeric member7229 can include a counter bore to reduce the thickness of the portionof the third elastomeric member 7229 through which the needle 7216penetrates, as described above with respect to FIGS. 73 and 74. In someembodiments, this arrangement can also be used to increase the volume ofthe mixing volume 7237. In some embodiments, the proximal and/or distalsides of any of the elastomeric members 7221, 7225, or 7229, can beshaped to increase or decrease the volumes of the diluents volume 7236,the mixing volume 7237, and/or the void volume 7238, respectively. Thus,the flow of a fluid to or from the diluents volume 7236, the mixingvolume 7237, and/or the void volume 7238 and/or the mixing of medicamentformulations within the mixing volume 7237 can be controlled.

FIGS. 86-90 depict portions of the injector 7000 including themedicament delivery mechanism 7300 and the transfer member 7600. Theinjector 7000 includes components configured to store, transport, andmix medicaments such as the safety lock 7700, the proximal cap 7103,medicament container assembly 7200, and the medicament deliverymechanism 7300. The medicament delivery mechanism 7300 can be activatedby portions of the system actuator assembly 7500 and includes a firstmovable member 7301, the second movable member 7370 and a mixing spring7390. When the injector 7000 is in the first and second configurations,the second movable member 7370 and the mixing spring 7390 are disposedwithin a piston portion 7330 of the first movable member 7301 (as shownin FIG. 89). A mixing activator member 7550 is operatively coupled tothe safety lock 7700 via a hook portion 7553. The mixing activatormember 7550 includes a pivot protrusion 7557 operatively coupled toproximal cap 7103 (see e.g., FIG. 82) that allows the mixing activatormember 7550 to pivot about the pivot protrusion 7557.

As shown in FIGS. 86, 87 and 89, the mixing activator member 7550includes a retention portion 7558 that is operatively engaged with anexternal retention portion 7381 of the second movable member 7370 whenthe injector 7000 is in the first configuration (e.g., before actuationof the second movable member 7370). The second movable member 7370includes an internal retention shoulder 7382 that engages a portion ofthe first movable member 7301 upon completion of the mixing operation.More particularly, the internal retention shoulder 7182 engages a mixingretainer 7335 included in the piston portion 7330 of the first movablemember 7301 (shown in FIG. 89) to stop the distal movement of secondmovable member 7370 upon completion of the mixing event. The mixingspring 7390 is configured exert a force to move the second movablemember 7370 in the distal direction when moving from a compressedconfiguration (e.g., when the injector is in the first configuration) toan uncompressed configuration (e.g., when the injector is in the secondconfiguration) in the distal direction such that the second movablemember 7370 contacts the first elastomeric member 7221.

The medicament delivery mechanism 7300 is configured such that when thesafety lock 7700 is removed from the injector 7000, a force acting inthe distal direction (as shown by the arrow AAA in FIG. 86) is appliedto the hook portion 7553 prior to the hook portion 7553 being disengagedfrom a retention portion 7750 of the safety lock 7700. The distal forcecauses the mixing activator member 7550 to freely rotate about pivotprotrusion 7557 thereby moving the retention portion 7558 in thedirection of the arrow BBB shown in FIG. 86. When the retention portion7558 is disengaged from the external retention portion 7381, the mixingspring 7390 moves from the compressed configuration to the uncompressedconfiguration and exerts a force on the second movable member 7370,thereby moving the second movable member 7370 in the distal direction.The distal movement of the second movable member 7370 causes theexternal retention portion 7381 to act against the retention portion7558 of the mixing activator member 7550, causing the mixing activatormember 7550 to further rotate. The mixing activator member 7550 rotatessuch that the external retention portion 7381 of the second movablemember 7370 is no longer operatively coupled to the retention portion7558 of the mixing activator member 7550, and the mixing spring 7390moves the second movable member 7370 into contact with the firstelastomeric member 7221. Continued movement of the second movable member7370 moves the first elastomeric member 7221, the second elastomericmember 7225 and/or the third elastomeric member 7229, as describedabove.

The first movable member 7301 includes the piston portion 7330 and alatch portion 7310. The piston portion 7330 is operatively coupled tothe injection spring 7420 via the transfer member 7600. In this manner,expansion of the injection spring 7420 moves transfer member 7600 in thedistal direction, thereby moving the piston portion 7330 in the distaldirection to move the medicament container 7210.

As shown in FIGS. 91-93, the latch portion 7310 of the first movablemember 7301 includes a release portion 7319 and a ramp 7321 and definesa channel 7320 and an opening 7316. The injection spring 7420 can movebetween a compressed configuration and an uncompressed configuration toexert an insertion force against the proximal cap 7103 and the transfermember 7600. When the injector 7000 is in the first, second and thirdconfiguration (i.e., prior to actuation of the insertion spring 7420),the release portion 7319 rests on and/or engages a rod 7530 of the base7510 (as shown in FIGS. 91 and 92). The release portion 7319, the base7510, and the injection spring 7420 are collectively configured suchthat injection spring 7420 cannot produce enough force to deform therelease portion 7319 to move the release portion 7319 in the distaldirection over the rod 7530. The release portion 7319, however, isconfigured (e.g., flexible) such that pushing the base 7510 in theproximal direction deforms the release portion 7319, thereby allowingthe rod 7530 to move in the proximal direction through release portion7319. The channel 7320 allows the first movable member 7301 to moveabout the rod 7530 during injection and retraction. The opening 7316receives a latch 7620 of the transfer member 7600.

With the movement of the rod 7530 past the release portion 7319, theinsertion spring 7420 is released from the compressed configuration(e.g., allowed to expand). The arrangement of the proximal cap 7103 issuch that the proximal cap 7103 exerts a reaction force equal to and inan opposite direction of the portion of the insertion force exerted onthe proximal cap 7103 by the insertion spring 7420. In this manner, thedistal end portion of the insertion spring 7420 is configured to extendin the distal direction. Thus, the expansion of the insertion spring7420 can move the transfer member 7600 and therefore the first movablemember 7301 in the distal direction. The mixing retainer 7335 can beconfigured to engage the internal retention shoulder 7382 of the secondmovable member 7370 to limit the distal movement of the second movablemember 7370, as described above. In some embodiments, the second movablemember 7370 can include a retention portion configured to limit movementof the second movable member 7370 relative to the first movable member7301 in a proximal direction (i.e., to limit and/or prevent retractionof the second movable member 7370 back into the piston portion 7330).

FIG. 93 depicts the first movable member 7301, the transfer member 7600,and the injection spring 7420 (the first movable member 7301 is showntranslucent to better show the interaction between the transfer member7600 and the latch portion 7310 of the first movable member 7301). Thelatch 7620 of the transfer member 7600 includes a top surface 7625, anda bottom surface 7621 configured to engage the distal end portion of thesidewall defining the opening 7316. The transfer member 7600 alsoincludes an injection spring seat 7615.

FIG. 95 depicts the retraction member 7440 and other components thatinteract with retraction member 7440 to retract the needle 7216 backinto the housing 7100 after injection of the medicament. The retractionmember 7440 is seated about the retraction member protrusion 7284 of thecarrier 7260 and can be seated about a spring seat (not shown) on thebase 7510 and/or a sidewall of the housing 7100. The retraction member7440 can be disposed substantially uncompressed (i.e., substantiallyexpanded) between the retraction member protrusion 7284 and the base7510 and/or the sidewall of the housing 7100. In some embodiments, theretraction member 7440 can be disposed partially compressed between theretraction member protrusion 7284 and the base 7510. In thoseembodiments in which the retraction member 7440 is disposed in an atleast partially compressed state, the latch 7294 interacts and/orengages with the catch 7136 of the housing 7100 to limit the proximalmovement of the carrier 7260. In this manner, the force exerted on thecarrier 7260 by the retraction member 7440 is not transferred to themedicament container 7210, the medicament delivery mechanism 7300, thesystem actuator assembly 7500, and/or the transfer member 7600. When thecarrier 7260 moves in the distal direction during injection, theretraction member 7440 is compressed between the base 7510 and thecarrier 7260. In this manner, as described in more detail below, theretraction spring 7440 exerts a proximal (or retraction) force on thecarrier 7260 upon completion of the injection operation.

FIGS. 96-99 depict the electronic assembly 7900, and other components ofthe injector 7000 that interact with the electronic assembly 7900. Theelectronic assembly 7900 includes any suitable electronic componentsoperatively coupled to produce and/or output an electronic output and/orto perform the functions described herein. The electronic assembly 7900can be similar to the electronic circuit systems described in U.S. Pat.No. 7,731,686, entitled “Devices, Systems and Methods for MedicamentDelivery,” filed Jan. 9, 2007, and/or U.S. Patent ApplicationPublication Number 2008/0269689, entitled “Medicament Delivery DeviceHaving an Electronic Circuit System,” filed May 12, 2009, both of whichare incorporated herein by reference in their entirety. As shown in FIG.96, the housing 7100 of the injector 7000 defines a volume 7137configured to receive an electronic circuit housing 7170. The electronicassembly 7900 can include an audio output device 7956, (e.g. a speaker),a battery assembly 7964, and at least one visual output device 7958(e.g., an LED light). As shown in FIG. 99, the electronic circuithousing 7170 defines a first actuation groove 7179 and a secondactuation groove 7180. The safety lock 7700 includes first switchactuator 7724 disposed within the first actuation groove 7179 such thatremoval of the safety lock 7700 from the injector 7000 engages a firstswitch of the electronic assembly 7900 to initiate an electronic outputof the electronic assembly 7900. The base 7510 includes second switchactuator 7520 disposed within second switch actuation groove 7180 suchthat actuation of the base 7510 engages a second switch of theelectronic assembly 7900 to initiate an electronic output of theelectronic assembly 7900.

The operation of the injector 7000 can be described as follows withreference to an injector 7000′ shown in FIGS. 100-105. The injector7000′ is similar to, and can have similar components as the injector7000. Accordingly, similar components can perform similar functions. Byway of example, the first elastomeric member 2217′ of the injector 7000can be similar in configuration to the first elastomeric member 7221 ofthe injector 7000. Furthermore, any component described in relation toinjector 7000, can be included in injector 7000′. By way of example, theinjector 7000′ can have an electronic assembly 7900 (not shown in FIGS.100-105). Thus, the following description of the injector 7000′ includesreferences to components described above with regards to injector 7000.

FIG. 100 depicts injector 7000′ with the case 7190′ disposed about thehousing 7100 (e.g., the first configuration). As depicted in FIG. 101,the case 7190′ can be removed from the injector 7000′(e.g., the secondconfiguration). Removing the case 7190′ can actuate the electronicassembly 7900 to produce an electronic output, such as, for example, anoutput indicating the status of injector 7000′ or providing instructionsfor operation. Removing the case 7190′ can actuate the electronicassembly 7900 by engaging a portion of the electronic assembly 7900,placing the battery assembly 7964 in electronic communication with aprocessor, or the like.

The safety lock 7700′ can be removed from the injector 7000′ to placethe injector 7000′ in a third configuration (e.g., the initiation of themixing operation). Removing the safety lock 7700 can cause the firstswitch actuator 7724 to activate a first switch to produce a secondelectronic output and/or continue producing the current electronicoutput. Removing the safety lock 7700 also initiates the mixingoperation (e.g., the third configuration). Specifically, removing thesafety lock 7700 causes the retention portion 7558 to disengage from therelease portion 7553 of the mixing activator member 7550 and can allowthe mixing activator member 7550 to rotate freely about the pivotprotrusion 7557. As described above with reference to medicamentdelivery mechanism 7300, force from the mixing spring 7390′ acts on thesecond movable member 7370′ and causes the second movable member 7370′to move in the distal direction. The distal movement of the secondmovable member 7370′ causes the external retention portion 7381 to actagainst the retention portion 7558 of the mixing activator member 7550causing the mixing activator member 7550 to rotate. The mixing activatormember 7550 rotates such that the external retention portion 7381 of thesecond movable member 7370′ is disengaged from the retention portion7558 of the mixing activator member 7550, thereby allowing the mixingspring 7390′ to move the second movable member 7370′ into the medicamentcontainer 7210′ and subsequently into contact with the first elastomericmember 7221′.

The distal movement the second movable member 7370′ within themedicament container 7210′ moves the first elastomeric member 7221′, thesecond elastomeric member 7225′, and/or the third elastomeric member7229′ within the medicament container 7210′, as described above, and asshown in FIGS. 101 and 102. In this manner, actuation of the medicamentdelivery mechanism 7300 produces the mixing operation as describedabove.

As described above, the distal movement of the third elastomeric member7229′ during the mixing operation causes the third elastomeric member7229′ to contact the needle 7216′, such that the needle 7216′ penetratesthrough a portion of the third elastomeric member 7229′, as shown inFIGS. 101 and 102. When the second movable member 7370′ has moved apredetermined distance within the medicament container 7210, theinternal retention shoulder 7382 contacts the mixing retainer 7335 ofthe first movable member 7301′ to stop the distal movement of the secondmovable member 7370′. In some embodiments, this arrangement can preventthe needle 7216′ from being placed in fluid communication with themixing volume 7237 and/or the medicament. At this point, mixing of themedicament is substantially completed and the injector 7000′ is in thefourth configuration (see e.g., FIG. 102). In some embodiments, however,the needle 7216′ can penetrate through the third elastomeric member7229′ before the internal retention shoulder 7382 stops the distalmovement of the second movable member 370′ and can allow the needle7216′ to be in fluid communication with the mixing volume 7237′ and themedicament.

During the mixing operation, the electronic assembly 7900 can output acountdown timer to alert the user to refrain from activating theinsertion spring 7420 of the injector 7000′ until the mixing is completeand/or can instruct the user to activate the injector 7000′ after themixing is complete. The electronic assembly 7900 can provide the userwith instructions for activating the injector 7000′, such as, forexample, identifying where to inject the medicament and/or how to begininjection (e.g., by pressing the base 7510′ against the body).

The user can move the base 7510′ (and any of the other bases shown anddescribed herein) using any suitable motion and/or operation. Forexample, in some embodiments, the user can grasp the sides of thehousing 7110′ and push against the proximal portion thereof. Moving thebase 7510′ in the proximal direction can start the insertion andinjection process (e.g., a fifth configuration and sixth configuration,respectively). When the base 7510′ is moved in the proximal direction,movement of the rod 7530 deforms the release portion 7319 such that therod 7530 moves in the proximal direction within the channel 7320 of thefirst movable member 7301′. The injection spring 7420 acts against theproximal cap 7103 and the transfer member 7600, as described above, tocause the transfer member 7600 to move in the distal direction. Thelatch 7620 of the transfer member 7600 acts within the opening 7316 andmoves the first movable member 7301′ in the distal direction. Themedicament delivery mechanism 7300′, the carrier 7260′, and themedicament container 7210′ can move substantially together, as shown inFIG. 103, to insert the needle 7216′. This operation also causesretraction spring 7440 to compress. A distal end portion of the carrier7260′ contacts the base 7510′ and/or the housing 7100 to stop movementof the carrier 7260 (e.g., the sixth configuration as shown in FIG.103).

Upon completion of the needle insertion operation, the injection spring7420 continues to move the transfer member 7600, the first movablemember 7301′, the mixing spring 7390′ and the second movable member7370′ in the distal direction. Said in another way, the medicamentdelivery mechanism 7300′ moves relative to the carrier 7260′. The secondmovable member 7370′ causes the first elastomeric member 7221′ and thesecond elastomeric member 7225′ to move in the distal direction andcauses the medicament within the mixing volume 7237′ to move the thirdelastomeric member 7229′ in the distal direction. The third elastomericmember 7229′ moves in the distal direction such that the needle 7216′penetrates through the third elastomeric member 7229′ thus placing theneedle 7216′ in fluid communication with the mixing volume 7237′ and themedicament (see, e.g. FIG. 103). The third elastomeric member 7229′contacts the distal end portion 7213 of the medicament container 7210′to stop its distal movement. Continued movement of the first elastomericmember 7221′ and the second elastomeric member 7229′ causes medicamentwithin the mixing volume 7237′ to flow into needle 7216′ and out ofinjector 7000′. The first elastomeric member 7221′ and the secondelastomeric member 7225′ continue to move in the distal direction andinto contact with the third elastomeric member 7229′, thereby stoppingthe flow of medicament from the mixing volume 237′ through the needle7216′ and out of the injector 7000′ (e.g., a seventh configuration asshown in FIG. 104).

Upon completion of the injection operation, the disengagement rod (notshown) of the base 7510′ contacts the ramp 7321 of the first movablemember 7301′ and causes the latch 7620 of the transfer member 7600 tomove out of the opening 7316 of the first movable member 7301′. Saidanother way, upon completion of the insertion, the transfer member 7600is disengaged from the first movable member 7301′, thereby removing theforce of the injection spring 7420 from the medicament deliverymechanism 7300′. The retraction member 7440, which has been compressedby the injection operation between the retraction member protrusion 7284and the base 7510′, expands and moves the carrier 7260′ and the needle7216′ in the proximal direction within the injector 7000′ (e.g., aneighth configuration as shown in FIG. 105). Although described as beinga portion of the base 7510′, in other embodiments, the disengagement rodcan be coupled to any suitable portion of the injector, such as forexample, the housing 7100′. Moreover, in some embodiments, theretraction member 7440′ can expand fully. In some embodiments thecarrier 7260′ can move in the proximal direction and the latch 7294 cancontact the catch 7136 of body 7100 to stop the proximal movement of thecarrier 7260 and the needle 7216.

Other embodiments can include any suitable mechanism for disengaging thetransfer member 7600 from the medicament delivery mechanism 7300′. Forexample, in some embodiments, when the transfer member 7600 and themedicament delivery mechanism 7300′ reach the distal end portion of thehousing 7100, a disengagement member (not shown) of the base 7510′ canlimit the travel of the medicament delivery mechanism 7300′ at apredetermined distance from the base 7510′ (e.g., towards the end of thetravel of the medicament delivery mechanism 7300′). Thus, when the base7510′ is pulled away from the injection site, the force of the injectionspring 7420′ can push the base 7510′ and/or the medicament deliverymechanism 7300′ in the distal direction. This movement can allow thelatch 7620 of the transfer member 7600 to align with a slot (not shown)in a retention member (not shown) of the housing 7100′, thereby allowingthe latch 7620 to become disengaged from the first movable member 7301′.After the latch 7620 is disengaged, retraction can occur, as describedabove. In this manner, because the base 7510′ remains stationary whilethe injector 7000′ is pressed firmly against the patient (e.g., the basecannot move in the distal direction), the retraction operation isprevented until the pressure is released (i.e., until the base 7510′ isremoved). This can provide time for the entire dose to be deliveredthrough the needle 7216′ before retraction occurs.

Although the injector 7000 is shown and described as having a secondmovable member 7370 that is separate (e.g., has a separate spring, canbe separately actuated, etc.) from the first movable member 7301, inother embodiments, a second movable member and a first movable membercan share common components and/or can be actuated by a single energystorage member. For example, FIGS. 106-111 depict an injector 8000.Certain components within the injector 8000 can be similar to and havesimilar functions as the corresponding components in the injector 7000.By way of example, the first elastomeric member 8221 of the injector8000 can be similar in configuration to the first elastomeric member7221 of the injector 7000. The injector 8000 differs from injector 7000,however, in that injector 8000 does not include a separately actuatedmixing assembly (e.g., the second movable member 7370 and/or the mixingspring 7590 included in the injector 7000).

The injector 8000 includes a housing 8100, a proximal cap 8103, a case8190, a base 8510, a medicament container 8210, and a first, second, andthird elastomeric member 8221, 8225, 8229, respectively, that define adiluents volume 8236, a mixing volume 8237, and a void volume 8238, asdescribed above. The injector 8000 also includes a needle 8216, and amovable member 8300. As described below, the movable member 8300effectuates both the mixing and the injection of the medicament.

FIG. 106 depicts the injector 8000 with the case 8190 disposed about thehousing 8100 (e.g., a first configuration). As depicted in FIG. 8102,the case 8190 can be removed from the injector 8000 to place theinjector 8000 in a second configuration. Removing the case 8190 canactuate an electronic assembly (not shown in FIGS. 106-111) to producean electronic output, such as, for example, an output indicating thestatus of the injector 8000 or providing instructions for operation.Removing the case 8190 can actuate the electronic assembly by engaging aportion of the electronic assembly, placing a battery assembly inelectronic communication with a processor, or the like, as describedabove.

A safety lock 8700 can be removed from injector 8000 to place theinjector 8000 in a third configuration (e.g., initiation of the mixingoperation). Removing safety lock 8700 can cause an actuator (similar tothe first switch actuator 7724) to activate a first switch, to produce asecond electronic output and/or continue producing a current electronicoutput. Removing the safety lock 8700 exposes the base 8510 of theinjector 8000.

The base 8510 can be moved in the proximal direction thereby causing aninjection spring (not shown in FIGS. 106-111) to act against theproximal cap 8103 (e.g., a distal end portion of the injection springmoves in the distal direction), which moves the movable member 8300 inthe distal direction as described above with reference to injector 7000.The initial movement of the movable member 8300 starts the mixingoperation (e.g., the third configuration, see FIG. 107). Morespecifically, the base 8510 can be moved in the proximal direction andcan cause a release rod to deform a release portion to actuate theinjection assembly, in a similar manner as described above. Theinjection spring can act against the proximal cap 8103 and a transfermember (e.g., similar to the transfer member 7600) to move the transfermember, in the distal direction, and therefore the movable member 8300.The distal movement of the movable member 8300 causes a piston portion8330 of the movable member 8300 to contact the first elastomeric member8221 and to move the first elastomeric member 8221 in the distaldirection.

The distal movement of the first elastomeric member 8221 moves thesecond elastomeric member 8225 and/or the third elastomeric member 8229within the medicament container 8210, as described above, and as shownin FIGS. 107 and 108. In this manner, actuation of the injection springproduces the mixing operation.

As described above, the distal movement of third elastomeric member 8229during the mixing operation causes the third elastomeric member 8229 tocontact needle 8216, such that the needle 8216 penetrates through aportion of the third elastomeric member 8229. At this point, mixing ofthe medicament is substantially complete and the injector 8000 is in afourth configuration (see e.g., FIG. 108). In some embodiments, however,the needle 8216 can penetrate through the third elastomeric member 8229thereby allowing the needle 8216 to be in fluid communication with themixing volume 8237 and the medicament.

Continued movement of the movable member 8300 starts the insertion andinjection processes (e.g., a fifth configuration). The movable member8300, the carrier 8260, and the medicament container 8210 can movesubstantially together, and can cause the retraction member 8440 tocompress. In this manner, the needle 8216 is inserted as shown in FIG.109. A distal end portion of the carrier 8260 contacts the base 8510and/or the housing 8100 to stop the distal movement of the carrier 8260and the medicament container 8210 (e.g., a sixth configuration, see FIG.109).

Upon completion of the needle insertion operation, the injection springcontinues to move the movable member 8300 in the distal direction. Saidin another way, the movable member 8300 moves relative to carrier 8260and within the medicament container 8210, as shown in FIGS. 109-110. Thepiston portion 8330 of the movable member 8300 moves the firstelastomeric member 8221 and the second elastomeric member 8225 in thedistal direction, thereby causing the medicament within the mixingvolume 8237 to move the third elastomeric member 8229 in the distaldirection. The third elastomeric member 8229 moves in the distaldirection such that the needle 8216 penetrates through the thirdelastomeric member 8229 thus placing the needle 8216 in fluidcommunication with the mixing volume 8237 and the medicament (see, e.g.FIG. 109). The third elastomeric member 8229 contacts the distal endportion 8213 of the medicament container 8210 to stop its distalmovement. Continued movement of the first elastomeric member 8221 andthe second elastomeric member 8229 causes the medicament within themixing volume 8237 to flow into the needle 8216 and out of the injector8000. The first elastomeric member 8221 and the second elastomericmember 8225 can continue to move in the distal direction and intocontact with the third elastomeric member 8229, thereby stopping theflow of medicament from the mixing volume 8237 through the needle 8216and out of the injector 8000 (e.g., a seventh configuration, see FIG.110).

Upon completion of the injection operation, the movable member 8300disengages from the injection spring. The movable member 8300 candisengage from the injection spring by any suitable mechanism. Forexample, in some embodiments the injector 8000 can include a transfermember similar to the transfer member 7600 described above. After themovable member 8300 is disengaged from the injection spring, theretraction member 8440, which has been compressed by the injectionoperation between the movable member 8300 and the base 8510, can expandand can move the carrier 8260 and the needle 8216 in the proximaldirection within injector 8000 (e.g., an eighth configuration, see FIG.111). In some embodiments, retraction member 8440 can expand fully.

Although the injector 7000 is shown as described as having a firstelastomeric member, a second elastomeric member, and a third elastomericmember within the medicament container. In other embodiments, theinjector 7000 can include only a first elastomeric member and a secondelastomeric member within the medicament container. For example, FIGS.112-117 depict an injector 9000 that does not include a thirdelastomeric member within the medicament container. Other componentswithin injector 9000, however, can be similar to and have similarfunctions as the components corresponding in the injector 7000 and theinjector 8000. By way of example, first elastomeric member 9221 of theinjector 9000 can be similar in configuration to first elastomericmember 7221 of the injector 7000.

The injector 9000 includes a housing 9100, a proximal cap 9103, a case9190, a base 9510, a medicament container 9210, a first elastomericmember 9221 and a second elastomeric member 9225 that define a diluentsvolume 9236 and a mixing volume 9237, a needle 9216, and a movablemember 9300. In some embodiments, the movable member 9300 can effectuateboth the mixing and the injection of the medicament.

FIG. 112 depicts the injector 9000 with the case 9190 disposed about thehousing 9100 (e.g., a first configuration). As depicted in FIG. 113, thecase 9190 can be removed from the injector 9000 to place the injector9000 in a second configuration. Removing the case 9190 can actuate anelectronic assembly (not shown in FIGS. 112-117) to produce anelectronic output, such as, for example, an output indicating the statusof the injector 9000 or providing instructions for operation. Removingthe case 9190 can actuate the electronic assembly by engaging a portionof the electronic assembly, placing a battery assembly in electroniccommunication with a processor, or the like.

The safety lock 9700 can be removed from the injector 9000 to place theinjector 9000 in a third configuration (e.g., initiation of the mixingoperation). Removing the safety lock 9700 can cause a first switchactuator 9724 to activate a first switch of the electronic assembly toproduce a second electronic output and/or continue producing a currentelectronic output.

Removing the safety lock 9700 exposes the base 9510 of injector 9000.The base 9510 can be moved in the proximal direction thereby causing aninjection spring to act against the proximal cap 9103, which moves themovable member 9300 in the distal direction. The initial movement of themovable member 9300 starts the mixing operation as described above withreference to the injector 8000 (e.g., the third configuration, see FIG.113). More specifically, the base 9510 can be moved in the proximaldirection and can cause a release rod to deform release portion toactuate the injection assembly, in a similar manner as described above.An injection spring acts against the proximal cap 9103 and a transfermechanism (e.g., similar to the transfer member 7600), and causes theinjection latch, and therefore the piston portion 9330, to move in thedistal direction. The distal movement of the movable member 9300 causesa piston portion 9330 of the movable member 9300 to contact the firstelastomeric member 9221. The distal movement of the first elastomericmember 9221 within the medicament container 9210 can move the secondelastomeric member 9225 within the medicament container 9210 asdescribed above, and as shown in FIGS. 113 and 9114. In this manner,actuation of the injection spring produces the mixing operation, asdescribed above.

As the diluent flows into the mixing volume 9237, the volume of thediluents volume 9236 can be reduced, and the volume of the mixing volume9237 can remain substantially the same. The first elastomeric member9221 can contact the second elastomeric member 9225 and can continue tomove in the distal direction. In this manner, mixing of the medicamentcan be substantially complete (e.g., a fourth configuration). The distalmovement of the first elastomeric member 9221 and the second elastomericmember 9225 can cause the volume of the mixing volume 9237 to be reducedand can cause any air within the mixing volume 9237 to vent out of theinjector 9000.

The injector 9000, and any other injectors described herein (includingthe injector 7000 and 7000′), can use any suitable mechanism for ventingthe air within the mixing volume 9237. For example, in some embodiments,the mixing mechanism can include a “two-step” mixing actuator. Theinitial actuation (or first step) of the mixing mechanism results in themixing operation, as described above. In such embodiments, the injectorcan include a protrusion or other member to limit the further movementof the spring. When mixing of the medicament is substantially complete,a user can orient the injector 9000 upwards, and can press a “vent”button, which actuates a release mechanism to allow the spring to expandfurther. Continued pressure exerted by the spring, can cause thecontainer to move, such that the needle 9216 pierces a crimp seal. Inthis manner, air within the mixing volume 9237 can escape via needle9216. In some embodiments, the continued pressure exerted by the springcan increase the turbulence of the diluent flowing within the medicamentcontainer, thereby enhancing the mixing operation.

In a three-plunger design (e.g., injectors 7000, 7000′ and 8000), uponpressing the “vent” button, continued distal movement of the firstelastomeric member 7221′, the second elastomeric member 7225′ and thethird elastomeric member 225′ within the medicament container 7210causes the needle 7216 to pierce the third elastomeric member 7225′. Inthis manner, air within the mixing volume 7237′ can escape via needle7216.

After venting, the user can push an injection button (not shown) and canallow a mixing spring (not shown) to continue to push the elastomericmembers toward the distal end of the medicament container 7210 and canbegin the injection process as described below.

Continued movement of the movable member 9300 starts the injectionprocess (e.g., a fifth configuration). The movable member 9300, thecarrier 9260, and the medicament container 9210 can move substantiallytogether, and can cause retraction member 9440 to compress. In thismanner, needle 9216 is inserted. A distal end portion of carrier 9260can contact the base 9510 and/or the housing 9100 to stop the distalmovement of the carrier 9260 and the medicament container 9210 (e.g., asixth configuration).

The injection spring can continue to move the injection latch andmovable member 9300. Said in another way, the movable member 9300 canbegin to move relative to the carrier 9260. A piston portion 9330 of themovable member 9300 can cause the first elastomeric member 9221 and thesecond elastomeric member 9225 to move in the distal direction, causingmedicament within the mixing volume 9237 to flow into the needle 9216out of the injector 9000. The first elastomeric member 9221 and thesecond elastomeric member 9225 can continue to move in the distaldirection into contact with the distal end portion 9213 of themedicament container 9210. At this point, the flow of medicament fromthe mixing volume 9237 through the needle 9216 and out of the injector9000 is stopped (a seventh configuration).

As the transfer member and the movable member 9300 near the base 9510,the transfer member can be decoupled from the movable member 9300 by anysuitable mechanism, thereby removing the force of the injection spring(not shown) from movable member 9300. The retraction member 9440, whichhas been compressed by the injection operation between the retractionmember protrusion 9284 and the base 9510, can expand and can move thecarrier 9260 and the needle 9216 in the proximal direction within theinjector 9000 (e.g., an eighth configuration). In some embodiments, theretraction member 9440 can expand fully. In some embodiments, thecarrier 9260 can move in the proximal direction and a latch included inthe carrier 260 can contact a catch of the housing 9100 to stop theproximal movement of the carrier 9260 and the needle 9216.

Although the injector 7000 is shown and described as having a mixingactivator member 7550 that is partially disposed within the injectionspring 7420, in other embodiments, a mixing activator release member andan injection spring (and/or injection assembly) can be disposed onopposing sides within an injector. Said another way, a mixing activatorrelease member may not be disposed within the injection spring. Forexample, FIGS. 118-133 depict an injector 10000. Certain componentswithin the injector 10000 can be similar to and have similar functionsas the corresponding components in the injector 10000. By way ofexample, first elastomeric member 10221 of the injector 10000 can besimilar in configuration to first elastomeric member 7221 of theinjector 7000. The injector 10000 at least differs from injector 7000,however, in that a mixing activator member 10550 of the injector 10000is not disposed within an injection spring 10420.

FIG. 118 is a front view of the injector 10000 in a secondconfiguration, FIG. 119 is a cross-sectional view of the injector 10000in the second configuration, FIG. 120 is a cross-sectional view of theinjector 10000 in the seventh configuration, and FIG. 121 is an explodedperspective view of the injector 10000. FIG. 122-FIG. 130 depict theoperation of the injector 10000. FIG. 131 depicts a top view of theinjector 10000, and FIG. 132 depicts a cross-sectional view the injector10000 taken along line W2-W2. FIG. 133 depicts a view of the injector10000 in the second configuration. The injector 10000 includes a body10105, a carrier 10260, a medicament container 10210, a firstelastomeric member 10221, a second elastomeric member 10225, a thirdelastomeric member 10229, a mixing activator member 10550, a mixinglatch guide 10565, a mixing spring 10390, a medicament deliverymechanism 10300, an injection spring 10420, an transfer member 10600, anenergy-absorbing member 10219, and a retraction member 10440. As shownin FIGS. 118-121, the mixing activator member 10550 includes a firstthickness 10561, a second thickness 10562, and third thickness 10563. Inthis manner, the rigidity of the mixing activator member 10550 can varyspatially. Said another way, the mixing activator member 10550 can beless rigid at certain points (e.g., the second thickness 10562) to allowthe mixing activator member 10550 to deform and/bend more easily duringthe operation of the injector 10000, e.g. about the mixing latch guide10565. In some embodiments, however, mixing activator member 10550 canbe a substantially uniform thickness. In some embodiments, mixingactivator member 10550 can include more or fewer than three thicknesses.In some embodiments, other injectors shown in described herein caninclude a mixing latch with varying thicknesses as described above. Themixing latch guide 10565 can act as a cam for the mixing activatormember 10550 during movement of the mixing activator member 10550. Inthis manner, a vertical portion of the mixing activator member 10550 canmove twice as far in the direction CCC as a horizontal portion of themixing activator member 10550 moves in the direction DDD. Said anotherway, the mixing latch guide 10565 imparts a mechanical advantage on themixing activator member 10550. In other embodiments, the mixing latchguide 10565 can be configured such that the vertical portion of themixing activator member 10550 can move a shorter distance in thedirection CCC than the horizontal portion of the mixing activator member10550 moves in the direction DDD.

The injector 10000 also includes the energy-absorbing member 10219. Theenergy-absorbing member 10219 can absorb, deflect and/or redirectenergy, and/or otherwise reduce the energy transferred into certaincomponents of the injector 10000 during operation. More specifically,the energy-absorbing member 10219 can reduce the energy transferred tothe medicament container during operation. In this manner, a medicamentcontainer including fragile materials can be less likely to deformand/or otherwise break during injection.

FIG. 122-FIG. 130 depict the operation of the injector 10000. Theoperation of injector 10000 can be similar to the operation of theinjector 7000 and the injector 7000′ as described above. FIG. 122 is atop view of the injector 10000, FIG. 123 is a bottom view of theinjector 10000, FIG. 124 is a cross-sectional view of the injector 10000in the first configuration (i.e. prior to removal of a case 10190), andFIG. 125 is a cross-sectional view of the injector 10000 taken alongline W1-W1. FIG. 126 is a cross-sectional view of the injector 10000 inthe third configuration (e.g., mixing start). FIG. 127 is across-sectional view of the injector 10000 in the fourth configuration(e.g., mixing end). FIG. 128 is a cross-sectional view of the injector10000 at the end of the fifth configuration (e.g., insertion) and thebeginning of the sixth configuration (e.g., injection start). FIG. 129is a cross-sectional view of the injector 10000 in the seventhconfiguration (e.g., injection end). FIG. 130 is a cross-sectional viewof the injector 10000 in the eighth configuration (e.g. retraction). Asshown in FIG. 130, after the injection process ends, the latch 10620 isdecoupled from the medicament delivery mechanism 10300. In this manner,the retraction member 10440 does not have to overcome the force of theinjection spring 10420.

FIG. 134 is a flow chart illustrating, and FIGS. 135-142 are schematicillustrations depicting, a method 11000 and a filling assembly 11250according to an embodiment. The method 11000 relates to the filling ofmedicament constituents in a medicament container 11210. The fillingassembly 11250 includes a first tray 11251, a second tray 11252, a thirdtray 11253 (shown in FIG. 140), and the medicament container 11210. Themedicament container 11210 can be similar to medicament container 11210,and upon completion of the fill/finish operation includes a firstelastomeric member 11221, a second elastomeric member 11225, a bypass11220, a distal end portion 11213, a proximal end portion 11212, and acrimp seal 242. The method 11000 includes inserting a portion of thedistal end portion 11212 of the medicament container 11210 into thefirst tray 11251 (at 11002). The method 11000 includes inserting thesecond elastomeric member 11225 within the medicament container 11210and moving the second elastomeric member 11225 toward the distal endportion 11212 of the medicament container 11210 (at 11004, see e.g.,FIG. 135). In some embodiments, the second elastomeric 11225 can bemoved in the distal direction such that at least a proximal surface ofthe second elastomeric member 11225 is proximal to the bypass 11220. Themethod 11000 includes placing the second tray 11252 over a portion ofthe proximal end portion 11213 of the medicament container 11210 (at11006, see e.g., FIG. 136). Said another way, a portion of the proximalend portion 11213 of the medicament container 11210 is inserted into thesecond tray 11252.

The method 11000 includes rotating the filling assembly 11250, removingthe first tray 11251, and adding a medicament 11240 via the distal endportion 11213 of the medicament container 11210 (at 11008, see e.g.,FIG. 137). The filling assembly 11250 is inserted into a lyophilizingmachine (not shown), and the medicament 11240 is lyophilized (thelyophilized medicament is designated as 11241) (at 11010, see e.g., FIG.138). In some embodiments, the lyophilized medicament 11241 can be addedto the medicament container 11210 at operation 11006. The method 11000includes sealing the distal end portion 11213 of the medicamentcontainer 11210 with a crimp seal 11242 (at 11012, see e.g., FIG. 139).The method 11000 includes placing the third tray 11253 over a portion ofthe distal end portion 11213 of the medicament container 11210 (at11014, see e.g., FIG. 140). Said another way, a portion of the distalend portion 11213 of the medicament container 11210 is inserted into thethird tray 11253. In some embodiment, the first tray 11251 can be usedin place of the third tray 11253 at operation 11014. The method 11000includes rotating the filling assembly 11250, removing the second tray11252, and adding a diluent 11244 via the proximal end portion 11212 ofthe medicament container 11210 (at 11016, see e.g., FIG. 141). Themethod 11000 includes inserting the first elastomeric member 11221within the medicament container 11210 and moving the first elastomericmember 11221 toward the distal end portion 11213 of the medicamentcontainer 11210 (at 11018, see e.g., FIG. 142).

FIG. 143 is a flow chart illustrating, and FIGS. 144-150 depict a method12000 and a filling assembly 12250 according to an embodiment. Themethod 12000 relates to the filling of medicament constituents in amedicament container 12210. All or portions of the method 12000 can beperformed by any suitable filling system, such as, for example, afilling system 13000 depicted in FIG. 151. The filling assembly 12250includes a first tray 12251, a second tray 12252, and the medicamentcontainer 12210. The medicament container 12210 can be similar tomedicament container 12210 and includes a first elastomeric member12221, a second elastomeric member 12225, a temporary elastomeric member12243, a third elastomeric member 12229, a bypass 12220, a distal endportion 12213, a proximal end portion 12212, and, optionally, a crimpseal 12242.

The filling system 13000 includes a filling station 13004, a dehydration(or lyophilization) station 13002, and a finishing station 13012. Thefilling station 13004 includes a first elastomeric member station 13006configured to insert the third elastomeric member 12229 and/or thesecond elastomeric member 12225 into the medicament container 12210, afilling device 13008 configured to add medicament and/or diluents to themedicament container 12210, and a second elastomeric member station13010 configured to insert the first elastomeric member 12221 and/or thetemporary elastomeric member 12243 into the medicament container 12210.In some embodiments, the filling station 13004 can include more or fewerelastomeric member stations, e.g., an elastomeric member station foreach of the first elastomeric member 12221, the second elastomericmember 12225, the third elastomeric member 12229, and/or the temporaryelastomeric member 12243. In some embodiments, the filling station 13004can include more or fewer filling devices, e.g., a filling device foreach of the medicament and/or the diluents. While FIG. 151 depicts thefirst elastomeric member station 13006, the filling device 13008, andthe second elastomeric member station 13010 as being grouped within thefilling station 13004, in some embodiments these components of thefilling station 13004 can be in other configurations, e.g., overmultiple filling stations 13004. The dehydration station 13002 can beconfigured to lyophilize medicament within the medicament container12210, and finishing station 13012 can be configured to prepare themedicament container 12210 for further assembly and/or packaging.

The method 12000 includes inserting a portion of the distal end portion12213 of the medicament container 12210 into the first tray 12251 (at12002). The method 12000 can include moving the medicament container12210 into the filling station 13004 and can include moving themedicament container 12210 into the first elastomeric member station13006. The method 12000 includes inserting the third elastomeric member12229 within the medicament container 12210 and moving the thirdelastomeric member 12229 toward the distal end portion 12213 of themedicament container 12210 (at 12004, see e.g., FIG. 144). In someembodiments, the third elastomeric member 12229 can be moved in thedistal direction such that at least a distal surface of the thirdelastomeric member 12229 is distal to a distal edge of the bypass 12220.

The method 12000 can include moving the medicament container 12210 intothe filling device 13008. The method 12000 includes adding a medicament12240 via the proximal end portion 12212 of the medicament container12210 (at 12006, see e.g., FIG. 144). The method 12000 can includemoving the medicament container 12210 into the second elastomeric memberstation 13010. The method 12000 includes adding a temporary elastomericmember 12243 to seal the medicament container 12210 upon completion ofthe lyophilization process, as described below.

The method 12000 can include moving the medicament container 12210 intothe dehydration station 13002. The method 12000 includes lyophilizingthe medicament 12240 (the lyophilized medicament is designated 12241 at12008, see e.g., FIG. 145). During the lyophilization process, thetemporary elastomeric member 12243 can allow the volume within themedicament container 12210 that contains the medicament 12240 to be influid communication with an area outside of the medicament container12210. Said another way, the temporary elastomeric member 12243 canallow the volume within the medicament container 12210 that contains themedicament 12240 to “breath” during the lyophilization process. Afterthe medicament 12240 is lyophilized, the method optionally includesmanipulating the temporary elastomeric member 12243 to fluidicallyisolate the volume within the medicament container 12210 that containsthe lyophilized medicament 12241, thereby preventing the lyophilizedmedicament 12241 from absorbing any moisture from the ambient air. Insome embodiments, the method can include compressing the temporaryelastomeric member 12243 within the medicament container to obstruct orclose channels defined therein.

Although the method 12000 is shown as including an operation oflyophilizing a medicament within the medicament container, in otherembodiments, the lyophilized medicament can be added to the medicamentcontainer 12210 at operation 12006.

The method 12000 can include returning the medicament container 12210 tothe filling station 13004, and can include moving the medicamentcontainer into the first elastomeric member station 13006. In thismanner, portions of the filling station 13004, which were used to insertthe third elastomeric member 12229 and/or fill the medicament container12210 with the medicament 12240 can also be used to insert the secondelastomeric member 12225 and/or fill the medicament container 12210 withdiluents 12244, as described below. This arrangement conserves fillstation resources and space. In other embodiments, however, the method12000 can include moving the medicament container 12210 into a thirdelastomeric member station (not shown).

The method 12000 includes removing the temporary elastomeric member12243 from the medicament container 12210. The method 12000 thenincludes inserting the second elastomeric member 12225 within themedicament container 12210 and moving the second elastomeric member12225 toward the distal end portion 12212 of the medicament container12210 (at 12010, see e.g., FIG. 146). In some embodiments, the secondelastomeric 12225 can be moved in the distal direction such that atleast a proximal surface of the second elastomeric member 12225 isproximal a proximal edge of the bypass 12220. The method 12000 caninclude moving the medicament container 12210 into the filing device13008. In some embodiment, the method 12000 can include moving themedicament container 12210 into a second filling device (not shown). Themethod 12000 includes adding a diluent 12244 via the proximal endportion 12212 of the medicament container 12210 (at 12012, see e.g.,FIG. 147).

The method 12000 can include moving the medicament container 12210 intothe second elastomeric member station 13010. In some embodiments themethod 12000 can include moving the medicament container 12210 into afourth elastomeric member station (not shown). The method 12000 includesinserting the first elastomeric member 12221 within the medicamentcontainer 12210 and moving the first elastomeric member 12221 toward thedistal end portion 12213 of the medicament container 12210 (at 12014, esee e.g., FIG. 148).

The method 12000 includes placing the second tray 12252 over a portionof the proximal end portion 12213 of the medicament container 12210 (at12016, see e.g., FIG. 149). Said another way, a portion of the proximalend portion 12213 of the medicament container 12210 is inserted into thesecond tray 12252. The method 12000 includes removing the first tray12251 and sealing the distal end portion 12212 of the medicamentcontainer 12210 with the crimp seal 12242 (at 12018, see e.g., FIG.150). In some embodiments, (e.g., embodiments with three elastomericmembers) the medicament container need not include a seal 12242. In suchembodiments, the third elastomeric member 12229 can seal the lyophilizedmedicament 12241 within the medicament container 12210, and in thismanner, the method 12000 can exclude steps 12016 and 12018.

Although shown as including the first tray 12251 and the second tray12252, in some embodiments, filling assembly 12250 and the method 12000may not include the first tray 12251 and/or the second tray 12252 forall or a portion of the method 12000, e.g., the medicament container12210 can be removed from the first tray 12251 and/or the second tray12252 for all or a portion of the method 12000. Similarly, althoughshown as including the first tray 11251, the second tray 11252, and thethird tray 11253, in some embodiments, filling assembly 11250 and themethod 11000 may not include the first tray 11251, the second tray 11252and/or the third tray 11253 for all or a portion of the method 11000,e.g., the medicament container 11210 can be removed from the first tray11251, the second tray 11252 and/or the third tray 11253 for all or aportion of the method 11000.

Although shown as including a crimp seal, in other embodiments, amedicament container being filled and finished to include threeelastomeric members may not include a crimp seal. In such embodiments,the distal-most elastomeric member can function to seal the distal endof the medicament container.

While various embodiments of the invention have been described above, itshould be understood that they have been presented by way of exampleonly, and not limitation. Where methods described above indicate certainevents occurring in certain order, the ordering of certain events may bemodified. Additionally, certain of the events may be performedconcurrently in a parallel process when possible, as well as performedsequentially as described above.

Although many of the medicament delivery devices are shown and describedherein as being medical injectors having a medicament container dividedinto two portions (see e.g., the medical injector 6000), in otherembodiments, any of the components, methods and/or formulationsdescribed herein can be used in any suitable medicament delivery device,such as, for example, an auto-injector, a pen injector, an inhaler, anasal delivery system or the like. In some embodiments, the medicamentdelivery device can include a medicament container having any number ofplungers and/or defining any number of volumes therein.

Although the components and methods described herein are shown anddescribed as being included in device that include a medicament, inother embodiments, any of the components and/or methods described hereincan be used in either an actual medicament delivery device or asimulated medicament delivery device. A simulated medicament deliverydevice can, for example, correspond to an actual medicament deliverydevice and can be used, for example, to train a user in the operation ofthe corresponding actual medicament delivery device. A simulatedmedicament delivery device or trainer can be similar to the simulatedmedicament delivery devices or trainers described in U.S. PatentPublication Number 2008/0059133, entitled “Medical Injector SimulationDevice,” filed Feb. 27, 2007, which is incorporated herein by referencein its entirety.

In such embodiments, the simulated medicament delivery device cansimulate the actual medicament delivery device in any number of ways.For example, in some embodiments, the simulated medicament deliverydevice can have a shape corresponding to a shape of the actualmedicament delivery device, a size corresponding to a size of the actualmedicament delivery device and/or a weight corresponding to a weight ofthe actual medicament delivery device. Moreover, in some embodiments,the simulated medicament delivery device can include components thatcorrespond to the components of the actual medicament delivery device.In this manner, the simulated medicament delivery device can simulatethe look, feel and sounds of the actual medicament delivery device. Forexample, in some embodiments, the simulated medicament delivery devicecan include external components (e.g., a housing, a needle guard, asterile cover, a safety lock or the like) that correspond to externalcomponents of the actual medicament delivery device. In someembodiments, the simulated medicament delivery device can includeinternal components (e.g., an actuation mechanism, a compressed gassource, a medicament container or the like) that correspond to internalcomponents of the actual medicament delivery device.

In some embodiments, however, the simulated medicament delivery devicecan be devoid of a medicament and/or those components that cause themedicament to be delivered (e.g., a needle, a nozzle or the like). Inthis manner, the simulated medicament delivery device can be used totrain a user in the use of the actual medicament delivery device withoutexposing the user to a needle and/or a medicament. Moreover, thesimulated medicament delivery device can have features to identify it asa training device to prevent a user from mistakenly believing that thesimulated medicament delivery device can be used to deliver amedicament. For example, in some embodiments, the simulated medicamentdelivery device can be of a different color than a corresponding actualmedicament delivery device. Similarly, in some embodiments, thesimulated medicament delivery device can include a label clearlyidentifying it as a training device.

Although the mixing actuator member 6550 is shown and described above asbeing actuated by the safety lock 6700, in other embodiments, a mixingactuator can be actuated by any suitable mechanism. For example, in someembodiments, a mixing actuator member can be actuated by the needlesheath. In such embodiments, the mixing actuator member can be coupledto the needle sheath such that as the needle sheath is moved in thedistal direction the needle sheath moves the mixing actuator in thedistal direction. In other embodiments, the mixing actuator can beoperably coupled to the needle sheath (e.g., via an interveningstructure). In other embodiments, the mixing actuator member can bemonolithically formed with the needle sheath and/or the safety lock.

Although the needle hub 6264 is shown and described as being configuredto receive and be coupled to the needle 6216, in other embodiments, adevice can include a container hub that is devoid of a needle. Forexample, in some embodiments, the medical injector 6000 can be aneedleless injector and the hub can define a pathway and/or otherwise becoupled to a delivery member through which the medicament is conveyedupon actuation.

In some embodiments, the audible sound produced by any of the devicesshown and described herein can be produced in conjunction with one ormore visual outputs. For example, in some embodiments, a medicamentdelivery device can include a video screen (e.g., an LCD screen) uponwhich messages, videos and/or other instructions can be shown during useof the device. In some embodiments, the device can include a touchscreen such that, in addition to the feedback from the movement ofvarious components of the device (e.g., the carrier) as describedherein, the electronic circuit system can receive input directly fromthe user.

Although the electronic circuit system 6900 is shown and described aboveas being actuated by the removal of the cover 6190, the movement of themixing actuator member 6550 and/or the movement of the base 6510, inother embodiments, the electronic circuit system of any of the devicesshown herein can be actuated by any suitable mechanism. In someembodiments, for example, a medicament delivery device can include amovable battery clip, an on/off switch or the like that can bemanipulated by the user to actuate the electronic circuit system. Insome embodiments, for example, a medical injector need not have a coversimilar to the cover 6190, but can be manually actuated by a “start”button depressed by the user.

Although the carrier 7260 is shown and described above as receiving aportion of the medicament container 7210, in other embodiments, acarrier can substantially surround the medicament container 7210. Forexample, in some embodiments, a carrier can include a first portion anda second portion coupled by a hinge, such that the carrier can beconfigured between a first (opened) configuration and a second (closed)configuration. In this manner, the carrier can substantially receive themedicament container 7210 when in the open configuration and be moved tosubstantially surround the medicament container 7210 when placed in theclosed configuration.

Although the medicament container assembly 6200 is described above asbeing configured to accommodate an o-ring or other suitable dampingmember to reduce the forces exerted on the medicament container 6210during insertion and/or injection, in other embodiments, any suitablemechanisms or structures for reducing the energy, impulse and/or forcesapplied to the carrier and/or the medicament container can be employed.For example, in some embodiments, a carrier can include a deformableportion (e.g., a “crush rib”) configured to deform when contacting thehousing during an insertion event. In this manner, the deformableportion can absorb at least a portion of the energy and/or forcegenerated during the impact, thereby reducing the magnitude of theenergy, impulse and/or force applied to the medicament container.Similarly, in some embodiments, a portion of a medicament deliverymechanism 6300 can include a crush rib or an impact portion configuredto plastically and/or elastically deform to absorb and/or dampen theforces from the needle insertion operation.

Any of the medicament containers described herein can be any containersuitable for storing the compositions disclosed herein. In someembodiments, the medicament container can be a pre-filled syringe, apre-filled cartridge, a vial, an ampule or the like. In someembodiments, for example, any of the devices shown and described hereincan include components and/or mechanisms to accommodate a pre-filledsyringe, similar to the embodiments shown and described in U.S. patentapplication Ser. No. ______ Attorney Docket No. INTJ-009/00US306456-2116, entitled “Medicament Delivery Devices for Administration ofMedicament within a Prefilled Syringe,” filed on the same date herewith,which is incorporated herein by reference in its entirety. In otherembodiments, the medicament container 1400 can be a container having aflexible wall, such as, for example, a bladder.

Any of the devices and/or medicament containers shown and describedherein can be constructed from any suitable material. Such materialsinclude glass, plastic (including thermoplastics such as cyclic olefincopolymers), or any other material used in the manufacture of prefilledsyringes containing medications.

Any of the devices and/or medicament containers shown and describedherein can include any suitable medicament or therapeutic agent. Forexample, although the medical injectors described above are shown anddescribed is including a multi-chamber medicament container (e.g.,medicament container 6210) that includes a substantially dry medicament(e.g., contained within the dry medicament volume 6237) and a diluent(e.g., contained within the diluent volume 6237), in other embodiments,any of the medicament delivery devices disclosed herein can include amulti-chamber container that is filled with any suitable substances. Forexample, in some embodiments, any of the medicament delivery devicesdisclosed herein can include a medicament container (e.g., a cartridge)that separately stores and mixes, upon actuation, two liquid substances.For example in some embodiments, any of the devices shown and describedherein can include a medicament container filled with (in separatechambers) epinephrine and at least one antihistamine (e.g., epinephrineand diphenhydramine, epinephrine and hydroxyzine, epinephrine andcetirizine); an antipsychotic medicament and a benzodiazepine (e.g.haloperidol and diazepam, haloperidol and midazolam, haloperidol andlorazepam); insulin and a GLP-1 analog or incretin mimetic (e.g. insulinand exenatide, insulin and lixisenatide); an NSAID and an opiode (e.g.,ketorolac and buprenorphine). Other suitable compositions that can beincluded in any of the medicament containers and/or devices describedherein include pralidoxime chloride and atropine; obidoxime chloride andatropine; epinephrine and atropine; methotrexate and etanercept;methotrexate and adalimumab; and methotrexate and certolizumab.

Glucagon Formulation

In some embodiments, a composition can include glucagon and/or anypharmaceutically acceptable constituents for use in the medicamentdelivery devices disclosed herein. In some embodiments, the glucagonformulation can be prepared and/or filled according to any of themethods described herein (e.g., method 11000). A composition accordingto an embodiment can be formulated such that the target concentration ofglucagon in the solution, either before lyophilization (see e.g.,operation 11010 shown and described above with reference to FIG. 134)and/or after being reconstituted upon actuation of the device, isapproximately 1 mg/mL. In other embodiments, the target concentration ofglucagon in the solution, either before lyophilization and/or afterbeing reconstituted, can be be approximately 2 mg/mL, approximately 1.5mg/mL, approximately 0.5 mg/mL (e.g., a pediatric dose) or approximately0.25 mg/mL. In other embodiments a composition can be formulated suchthat the target concentration of glucagon in the solution, either beforelyophilization and/or after being reconstituted upon actuation of thedevice, is between approximately 0.25 mg/mL and 2 mg/mL, betweenapproximately 0.5 mg/mL and 1 mg/mL, or between approximately 0.8 mg/mLand 1.2 mg/mL.

In certain embodiments, the concentration (either before lyophilizationor upon reconstitution) of glucagon in a glucagon formulation is about 1mg/mL and the total solute concentration is about 50 mg/mL. For example,in some embodiments, a composition can include glucagon and any suitablebulking agents to increase the total solute concentration in theglucagon formulation. In this manner, the glucagon formulation can bemore effectively lyophilized and/or reconstituted. For example, in someembodiments, as described below, certain bulking agents can be used toimprove the stability, solubility and/or efficacy of the compositionwhen reconstituted in any of the devices shown and described herein. Insome embodiments, certain bulking agents can be used to produce a visualindicia when the composition is reconstituted (e.g., such agents canallow the reconstituted medicament to be more easily detected by theuser).

In some embodiments, a composition can include a peptide, such as, forexample, glucagon and a carbohydrate. In this manner, the stability ofthe peptide (e.g., glucagon) can be increased during lyophilization andsubsequent storage. In particular, the stability of peptides, such asglucagon, can be increased in an amorphous (i.e. non-crystalline)environment. It is believed that carbohydrates undergoing dehydrationcreate a solid-state environment that is amorphous and exhibits highviscosity when maintained below the glass transition temperature. Inaddition, carbohydrates contain multiple hydroxyl groups that may formhydrogen bonds with polar groups on a protein or peptide surface in anamorphous solid-state environment. Without being bound by any particularmechanism, when water is removed during lyophilization, suchcarbohydrates may maintain the hydrogen bonds and preserve thenative-like solid state of the polypeptide structure. In certainembodiments, therefore, the glucagon formulations include otherexcipients, such as, but not limited to carbohydrates. Suitablecarbohydrates include, but are not limited to, lactose, trehalose,mannitol, and combinations thereof.

Additionally, the solubility of glucagon increases below a pH of 4. Incertain embodiments, the glucagon formulations, prior to lyophilizationand/or after reconstitution, have a pH of less than about pH 5.0,including less than about pH 4.5, less than about pH 4.0, less thanabout pH 3.5, less than about pH 3.0, less than about pH 2.5, less thanabout pH 2.0. In other embodiments of the invention, the glucagonformulations, prior to lyophilization and/or after reconstitution, havea pH range of about pH 1.5 to about pH 5.0, inclusive of all ranges andsubranges therebetween, e.g., about pH 2.0 to about pH 4.5, about pH 2.0to about pH 4.0, about pH 2.0 to about pH 3.5, about pH 2.0 to about pH3.0, about pH 2.0 to about pH 2.5, about pH 2.5 to about pH 4.5, aboutpH 2.5 to about pH 4.0, about pH 2.5 to about pH 3.5, about pH 2.5 toabout pH 3.0, about pH 3.0 to about pH 4.5, about pH 3.0 to about pH4.0, about pH 3.0 to about pH 3.5, about pH 3.5 to about pH 4.5, andabout pH 3.5 to about pH 4.0. In certain embodiments, the pH of theglucagon formulation is adjusted prior to lyophilization by the additionof a suitable acid, such as hydrochloric acid or citric acid.

The lyophilized formulations of the present invention may bereconstituted by any suitable diluent or combination of diluent,including, but not limited to, water, sterile water, glycerin, orhydrochloric acid.

As described above, in some embodiments, a glucagon formulation caninclude any suitable bulking agents and/or excipients. Table 1 lists theformulations investigated for lyophilization. The formulations set forthe below include a concentration of glucagon in the solution, eitherbefore lyophilization and/or after being reconstituted, of approximately1 mg/mL.

TABLE 1 Formulation Excipients and Concentration Medicament 1 Lactose -49 mg/mL 1 mg/mL glucagon 2 Trehalose - 40 mg/mL 1 mg/mL glucagonMannitol - 20 mg/mL 3 Trehalose - 40 mg/mL 1 mg/mL glucagon Mannitol -20 mg/mL Citric acid - 1.8 mg/mL Sodium citrate - 0.35 mg/mL 4 Glycine -20 mg/mL 1 mg/mL glucagon 5 Mannitol - 40 mg/mL 1 mg/mL glucagonAscorbic acid - 5 mg/mL

Formulation 1 included lactose, which is a known animal-derivedexcipient. Lactose, which is used in the commercially available glucagonformulations, is a reducing sugar that may destabilize glucagon.Accordingly, Formulations 2 through 5 are lactose-free formulations.Formulation 2 utilized trehalose and mannitol as carbohydrate bulkingagents. Formulation 3 included a buffer system of citric acid and sodiumcitrate, in addition to the carbohydrate bulking agents. Formulation 4was carbohydrate free, containing only glycine as the bulking agent.Formulation 5 utilized only mannitol as a bulking agent and includedascorbic acid. All formulations except Formulation 3 employedhydrochloric acid to reduce the solution pH to approximately 3 beforelyophilization.

Trehalose, however, is a non-reducing sugar, and without being bound byany particular mechanism, may potentially increase the stability ofglucagon, prior to lyophilization, during lyophilization, in storage,and/or after reconstitution. In addition to the improved properties ofFormulation 3, the absence of any animal-based excipients, such aslactose, make it particularly appealing from a regulatory standpoint, asthe FDA has strict guidelines regarding animal-based excipients.

All five formulations listed in Table 1 were successfully reconstitutedwith water and resulted in solutions suitable for use in themulti-chambered container closure system of the present invention.

In some embodiments, the medicament contained within any of themedicament containers shown herein can be a vaccine, such as, forexample, an influenza A vaccine, an influenza B vaccine, an influenza A(H1N1) vaccine, a hepatitis A vaccine, a hepatitis B vaccine, ahaemophilus influenza Type B (HiB) vaccine, a measles vaccine, a mumpsvaccine, a rubella vaccine, a polio vaccine, a human papilloma virus(HPV) vaccine, a tetanus vaccine, a diphtheria vaccine, a pertussisvaccine, a bubonic plague vaccine, a yellow fever vaccine, a choleravaccine, a malaria vaccine, a smallpox vaccine, a pneumococcal vaccine,a rotavirus vaccine, a varicella vaccine and/or a meningococcus vaccine.In other embodiments, the medicament contained within any of themedicament containers shown herein can be epinephrine. In otherembodiments, the medicament contained within any of the medicamentcontainers shown herein can be naloxone, including any of the naloxoneformulations described in U.S. patent application Ser. No. 13/036,720,entitled “Medicament Delivery Device for Administration of OpioidAntagonists Including Formulation for Naloxone,” filed on Feb. 28, 2011.

In other embodiments, the medicament contained within any of themedicament containers shown herein can include insulin, glucagon, humangrowth hormone (HGH), erythropoiesis-stimulating agents (ESA), DeMab,Interferon and other chronic therapies, or the like. Such formulationscan be produced using a general lyophilization process with glucagon (ofrecombinant origin) using bulking agents, stabilizers, buffers,acidifying agents or other excipients comprising of, but not limited to,one or more of the following combinations: lactose, hydrochloric acid;glucose, histidine, hydrochloric acid; trehalose, mannitol, citrate;trehalose, mannitol, hydrochloric acid; trehalose, glycine, hydrochloricacid; Mannitol, ascorbic acid; and Glycine, hydrochloric acid.

In other embodiments any of the injectors described herein can be filledwith and/or used to inject medicament formulations, includinglyophilized biologics and/or biopharmaceuticals, such as, for example,canakinumab, certolizumab, golimumab, and/or interleukins, for thetreatment of crypyrin associated periodic syndromes, hereditaryandioedema, and other auto-immune diseases. In yet other embodiments anyof the injectors described herein can be filled with and/or used toinject intranasal biologics, such as glucagon or human growth hormone,formulated for use in an auto injector, for the treatment ofmusculoskeletal diseases, growth disorders, diabetes & treatment relateddisorders.

In other embodiments, any of the injectors described herein can befilled with and/or used to inject an anti-thrombotics, such as LMWH,ULMWH, Xa Inhibitors, biotinylated idraparinux, etc., for either theacute management and/or surgical prophylaxis of deep vein thrombosisand/or pulmonary embolism or for the management of other conditionswhich may require anticoagulation to prevent thromboembolism, such asits use in cardiovascular diseases including atrial fibrillation andischemic stroke. In another example, in some embodiments an injectoraccording to an embodiment can be filled with and/or used to injectformulations for the treatment of asthma and/or chronic obstructivepulmonary disease.

In other embodiments, any of the injectors described herein can befilled with and/or used to inject recombinant hyaluronidase.

In other embodiments, any of the injectors described herein can befilled with and/or used to inject depot medroxyprogesterone acetate forthe treatment of infertility.

In other embodiments, any of the injectors described herein can befilled with and/or used to inject environmental, food, and householdallergen formulations for the treatment of allergic disease,specifically for use in immunotherapy.

In still other embodiments, the medicament contained within any of themedicament containers shown herein can be a placebo substance (i.e., asubstance with no active ingredients), such as water.

The medicament containers and/or medicament delivery devices disclosedherein can contain any suitable amount of any medicament. For example,in some embodiments, a medicament delivery device as shown herein can bea single-dose device containing an amount medicament to be delivered ofapproximately 0.4 mg, 0.8 mg, 1 mg, 1.6 mg or 2 mg. As described above,the fill volume can be such that the ratio of the delivery volume to thefill volume is any suitable value (e.g., 0.4, 0.6 or the like). In someembodiments, an electronic circuit system can include a “configurationswitch” (similar to any of the switches shown and described above, suchas the switch 6972) that, when actuated during the assembly of thedelivery device, can select an electronic output corresponding to thedose contained within the medicament container.

Although the electronic circuit system 6900 is shown and described aboveas having two irreversible switches (e.g., switch 6972 and switch 6973),in other embodiments, an electronic circuit system can have any numberof switches. Such switches can be either reversible or irreversible.

Although the electronic circuit system 6900 is shown and described aboveas producing an electronic output in response to the actuation of twoswitches (e.g., switch 6972 and switch 6973), in other embodiments, anelectronic circuit system can produce an electronic output in responseto any suitable input, command or prompt. Suitable input for promptingan output can include, for example, an audible input by the user (e.g.,the user's response to a voice prompt produced by the electronic circuitsystem), an input from a “start button” depressed by the user, an inputfrom a sensor (e.g., a proximity sensor, a temperature sensor or thelike), movement of (e.g., shaking) of the medicament delivery device, orthe like. In some embodiments, an electronic circuit system can includea microphone and/or a voice recognition module to detect a user's vocalinput.

Although medical devices having two LEDs and an audio output device havebeen shown, in other embodiments the medical device might have anynumber of LEDs and/or audio output devices. Additionally, other types ofoutput devices, such as haptic output devices, can be used. In someembodiments, outputs from an electronic circuit system can include, forexample, an audible or visual output related to the composition of themedicament (e.g., an indication of the expiration date, the symptomsrequiring treatment with the medicament or the like), the use of themedicament delivery device, and/or post-administration procedures (e.g.,a prompt to call 911, instructions for the disposal of the device or thelike).

In some embodiments, the electronic circuit system 6900 of the typesshown and described herein can be used in either an actual medicamentdelivery device or a simulated medicament delivery device. A simulatedmedicament delivery device can, for example, correspond to an actualmedicament delivery device and can be used, for example, to train a userin the operation of the corresponding actual medicament delivery device.

The simulated medicament delivery device can simulate the actualmedicament delivery device in any number of ways. For example, in someembodiments, the simulated medicament delivery device can have a shapecorresponding to a shape of the actual medicament delivery device, asize corresponding to a size of the actual medicament delivery deviceand/or a weight corresponding to a weight of the actual medicamentdelivery device. Moreover, in some embodiments, the simulated medicamentdelivery device can include components that correspond to the componentsof the actual medicament delivery device. In this manner, the simulatedmedicament delivery device can simulate the look, feel and sounds of theactual medicament delivery device. For example, in some embodiments, thesimulated medicament delivery device can include external components(e.g., a housing, a needle guard, a sterile cover, a safety lock or thelike) that correspond to external components of the actual medicamentdelivery device. In some embodiments, the simulated medicament deliverydevice can include internal components (e.g., an actuation mechanism, acompressed gas source, a medicament container or the like) thatcorrespond to internal components of the actual medicament deliverydevice.

In some embodiments, however, the simulated medicament delivery devicecan be devoid of a medicament and/or those components that cause themedicament to be delivered (e.g., a needle, a nozzle or the like). Inthis manner, the simulated medicament delivery device can be used totrain a user in the use of the actual medicament delivery device withoutexposing the user to a needle and/or a medicament. Moreover, thesimulated medicament delivery device can have features to identify it asa training device to prevent a user from mistakenly believing that thesimulated medicament delivery device can be used to deliver amedicament. For example, in some embodiments, the simulated medicamentdelivery device can be of a different color than a corresponding actualmedicament delivery device. Similarly, in some embodiments, thesimulated medicament delivery device can include a label clearlyidentifying it as a training device.

Although various embodiments have been described as having particularfeatures and/or combinations of components, other embodiments arepossible having a combination of any features and/or components from anyof embodiments where appropriate. For example, any of the devices shownand described herein can include an electronic circuit system asdescribed herein. For example, although the medicament delivery device10000 shown in FIGS. 118-133 is not shown as including an electroniccircuit system, in other embodiments, a medicament delivery devicesimilar to the device 10000 can include an electronic circuit systemsimilar to the electronic circuit system 6900 shown and described above.

1. An apparatus, comprising: a housing; a medicament container disposedwithin the housing; and a movable assembly including a first movablemember and a second movable member, the second movable member configuredto move relative to the first movable member to change the movableassembly from a first configuration to a second configuration, a distalend portion of the second movable member configured to move a plunger ina distal direction within the medicament container when the movableassembly changes from the first configuration to the secondconfiguration, the movable assembly configured to move the medicamentcontainer within the housing from a first medicament container positionto a second medicament container position when the movable assemblymoves from a first position within the housing to a second positionwithin the housing.
 2. The apparatus of claim 1, wherein: the plunger isa first plunger disposed within a proximal end portion of the medicamentcontainer, the medicament container includes a second plunger disposedtherein spaced apart from the first plunger, the first plunger, aportion of the medicament container and the second plunger collectivelydefining, at least in part, a first medicament containing portioncontaining a first substance, the second plunger and a distal endportion of the medicament container collectively defining, at least inpart, a second medicament containing portion containing a secondsubstance.
 3. The apparatus of claim 2, wherein the second substance isselected from the group consisting of adalimumab, atropine,buprenorphine, certolizumab, cetirizine, diazepam, diphenhydramine,epinephrine, etanercept, exenatide, glucagon, haloperidol, hydroxyzine,insulin, ketorolac, lixisenatide, lorazepam, methotrexate, midazolam,obidoxime chloride, pralidoxime chloride, and combinations thereof. 4.The apparatus of claim 2, wherein the second substance is asubstantially dry glucagon formulation, wherein the formulation furthercomprises a carbohydrate.
 5. The apparatus of claim 1, wherein themovable assembly is configured to move the medicament container withinthe housing after the movable assembly is in the second configuration.6. The apparatus of claim 1, wherein: a length of the movable assemblyincreases when the second movable member moves relative to the firstmovable member.
 7. The apparatus of claim 1, wherein: a proximal endportion of the second movable member is disposed outside of a proximalend portion of the first movable member when the movable assembly is inthe first configuration, the proximal end portion of the second movablemember is disposed outside of a distal end portion of the first movablemember when the movable assembly is in the second configuration.
 8. Theapparatus of claim 1, wherein: the first movable member includes apiston portion configured to move within the medicament container toexpel a medicament from the medicament container when the medicamentcontainer is in the second medicament container position, a portion ofthe second movable member configured to be slidably disposed within thepiston portion of the first movable member.
 9. The apparatus of claim 1,wherein: the second movable member includes a retention portionconfigured to limit movement of the second movable member relative tothe first movable member.
 10. The apparatus of claim 1, wherein: thesecond movable member includes a retention portion configured to limitmovement of the second movable member relative to the first movablemember when the retention portion is engaged with a release member. 11.The apparatus of claim 1, wherein: the second movable member includes afirst retention portion and a second retention portion, the firstretention portion configured to limit movement of the second movablemember relative to the first movable member when the movable assembly isin the first configuration, the second retention portion configured tolimit movement of the second movable member relative to the firstmovable member when the movable assembly is in the second configuration.12. The apparatus of claim 1, wherein: the first movable member includesa retention portion configured to engage a portion of the housing tomaintain the movable assembly in the first position within the housing.13. The apparatus of claim 1, wherein: a portion of the second movablemember is disposed within the first movable member when the movableassembly is in the first configuration, the portion of the secondmovable member is disposed outside of the first movable member when themovable assembly is in the second configuration.
 14. The apparatus ofclaim 1, wherein the movable assembly includes an energy storage memberconfigured to produce a force to move the second movable member relativeto the first movable member.
 15. The apparatus of claim 1, wherein: aportion of the second movable member is disposed within the firstmovable member; and the movable assembly includes a spring disposedwithin the first movable member and the second movable member, thespring configured to produce a force to move the second movable memberrelative to the first movable member.
 16. The apparatus of claim 1,wherein: the movable assembly includes a first energy storage memberconfigured to produce a first force to move the second movable memberrelative to the first movable member; and the first movable member isconfigured to be operably coupled to a second energy storage memberconfigured to produce a second force to move the movable assembly fromthe first position to the second position.
 17. The apparatus of claim 1,wherein a portion of the movable assembly is configured to actuate anelectronic circuit system when the medicament container is moved fromthe first medicament container position to the second medicamentcontainer position.
 18. An apparatus, comprising: a housing; amedicament container; and a movable assembly configured to move aplunger a first distance within the medicament container when themovable assembly moves from a first configuration to a secondconfiguration, a length of the movable assembly increasing when themovable assembly moves from a first configuration to a secondconfiguration, the movable assembly configured to move the plunger asecond distance within the medicament container when the movableassembly moves within the housing after the movable assembly is in thesecond configuration.
 19. The apparatus of claim 18, wherein: themovable assembly is configured to move the plunger the first distance ina distal direction; and the movable assembly is configured to move theplunger the second distance in the distal direction.
 20. The apparatusof claim 18, wherein: the movable assembly configured to move themedicament container from a first medicament container position to asecond medicament container position when the movable assembly moveswithin the housing.
 21. The apparatus of claim 18, wherein: the movableassembly configured to move the medicament container from a firstmedicament container position to a second medicament container positionwhen the movable assembly moves from a first position within the housingto a second position within the housing, the movable assembly configuredto move the plunger the second distance when the movable assembly movesfrom the second position within the housing to a third position withinthe housing.
 22. The apparatus of claim 18, wherein: the plunger is afirst plunger disposed within a proximal end portion of the medicamentcontainer, the medicament container includes a second plunger disposedtherein spaced apart from the first plunger, the first plunger, aportion of the medicament container and the second plunger collectivelydefining, at least in part, a first medicament containing portioncontaining a first substance, the second plunger and a distal endportion of the medicament container collectively defining, at least inpart, a second medicament containing portion containing a secondsubstance.
 23. The apparatus of claim 18, wherein the movable assemblyincludes a first movable member and a second movable member, the secondmovable member configured to move relative to the first movable memberto change the movable assembly from the first configuration to thesecond configuration.
 24. The apparatus of claim 18, wherein the movableassembly including a retention portion configured to maintain the lengthof the movable assembly when the movable assembly is in the secondconfiguration.
 25. The apparatus of claim 18, wherein the movableassembly includes a first movable member and a second movable member, apiston portion of the first movable member configured to move within themedicament container to move the plunger the second distance, a portionof the second movable member configured to be slidably disposed withinthe piston portion of the first movable member, the portion of thesecond movable member configured to move within the first movable memberto change the movable assembly from the first configuration to thesecond configuration.
 26. The apparatus of claim 18, wherein the movableassembly includes an energy storage member configured to produce a forceto change the movable assembly from the first configuration to thesecond configuration.
 27. The apparatus of claim 18, wherein: themovable assembly includes a first energy storage member configured toproduce a first force to change the movable assembly from the firstconfiguration to the second configuration; and the movable assembly isconfigured to be operably coupled to a second energy storage memberconfigured to produce a second force to move the movable assembly withinthe housing to move the plunger the second distance within themedicament container.
 28. The apparatus of claim 18, wherein the movableassembly includes a spring configured to urge the movable assemblytoward the second configuration, the apparatus further comprising: arelease member configured to maintain the spring in a compressedconfiguration when the release member is engaged with the movableassembly.
 29. An apparatus, comprising: a housing; a medicamentcontainer disposed within the housing; a movable member configured tomove a plunger within the medicament container; and a release memberhaving a first end portion and a second end portion, the second endportion configured to move between a first position and a secondposition, the second end portion of the release member configured tolimit movement of the movable member when the second end portion is inthe first position, the release member configured such that when thefirst end portion is moved in a first direction, the second end portionmoves in a second direction from the first position to the secondposition, the second direction different than the first direction. 30.The apparatus of claim 29, wherein the second end portion is engagedwith a portion of the movable member when the second end portion is inthe first position, the second end portion is spaced apart from themovable member when the second end portion is in the second position.31. The apparatus of claim 29, wherein the release member is configuredto amplify a force applied to the first end portion when the force istransferred to the second end portion.
 32. The apparatus of claim 29,wherein the release member includes a pivot portion pivotably coupled tothe housing, the first end portion of release member spaced apart fromthe pivot portion by a first distance, the second end portion of therelease member spaced apart from the pivot portion by a second distance,the second distance different than the first distance.
 33. The apparatusof claim 29, wherein the release member includes a pivot protrusionconfigured to be disposed within an opening defined by the housing, atleast a portion of the release member configured to rotate about thepivot protrusion when the second end portion is moved from the firstposition to the second position.
 34. The apparatus of claim 29, whereinthe release member includes a pivot portion pivotably coupled to thehousing, the pivot portion configured to deform when the first endportion is moved in the first direction.
 35. The apparatus of claim 29,wherein the second direction is substantially normal to the firstdirection.
 36. The apparatus of claim 29, wherein the first end portionis configured to actuate an electronic circuit system when the first endportion is moved in the first direction.
 37. The apparatus of claim 29,wherein: the plunger is a first plunger disposed within a proximal endportion of the medicament container, the medicament container includes asecond plunger disposed therein spaced apart from the first plunger, thefirst plunger, a portion of the medicament container and the secondplunger collectively defining, at least in part, a first medicamentcontaining portion containing a first substance, the second plunger anda distal end portion of the medicament container collectively defining,at least in part, a second medicament containing portion containing asecond substance; and the movable member is a mixing piston configuredto move the first plunger to mix the first substance and the secondsubstance.
 38. The apparatus of claim 37, further comprising: an energystorage member configured to produce a force to convey the firstsubstance and the second substance from the medicament container; anactuation member configured to actuate the energy storage member whenthe actuation member is moved; and a safety lock movably coupled to thehousing, the safety lock configured to engage a portion of the actuationmember to limit movement of the actuation member, the first end portionof the release member coupled to the safety lock such that when thesafety lock is moved relative to the housing, the first end portion ismoved in the first direction.
 39. The apparatus of claim 29, furthercomprising: a needle configured to be placed in fluid communication withthe medicament container; and a needle cover assembly covering at leasta portion of the needle when the needle cover assembly is coupled to thehousing, the first end portion of the release member coupled to aportion of the needle cover assembly such that when the needle coverassembly is removed from the housing, the first end portion is moved inthe first direction.
 40. An apparatus, comprising: a housing; amedicament container disposed within the housing; a movable memberconfigured to move the medicament container within the housing; and arelease member having a first end portion and a second end portion, thesecond end portion configured to move between a first position and asecond position, the second end portion of the release member configuredto engage a portion of the movable member to limit movement of themovable member when the second end portion is in the first position, therelease member including a pivot portion pivotably coupled to thehousing, the first end portion of release member spaced apart from thepivot portion by a first distance, the second end portion of the releasemember spaced apart from the pivot portion by a second distance, thesecond distance different than the first distance.
 41. The apparatus ofclaim 40, wherein the release member is configured to transfer andamplify a force applied to the first end portion from the first endportion to the second end portion.
 42. The apparatus of claim 40,wherein the release member configured such that when the first endportion is moved in a first direction, the second end portion moves in asecond direction from the first position to the second position, thesecond direction different than the first direction.
 43. The apparatusof claim 40, wherein the release member includes a pivot portionpivotably coupled to the housing, the pivot portion configured to deformwhen the second end portion is moved.